Ready or Not doesn’t hold your hand, and that’s exactly the point. Mission progression is built around tension, consequences, and player-driven mastery rather than a clean, linear campaign. You’re not climbing a traditional ladder of levels; you’re earning trust through performance, restraint, and tactical discipline under pressure.
Every mission exists as a self-contained crisis with its own layout, suspect behavior, civilian density, and rules of engagement quirks. The game expects you to learn by doing, failing, and refining your approach, not by grinding XP or chasing arbitrary unlocks. That philosophy shapes how missions open up, how they’re replayed, and how your choices carry forward.
Linear Structure, Non-Linear Mastery
At its core, Ready or Not uses a mostly linear mission order, especially in Commander Mode, where new operations unlock as previous ones are cleared. However, the difficulty curve isn’t smooth or forgiving. Early missions can punish sloppy play just as hard as late-game operations if you misread aggro, overcommit angles, or mishandle civilians.
What changes over time isn’t the raw mechanical demand, but the complexity of scenarios. Maps get larger, suspect AI becomes less predictable, and civilian presence ramps up, forcing tighter trigger discipline. Progression is about expanding your tactical vocabulary, not boosting stats.
Commander Mode vs Practice Mode
Mission progression behaves very differently depending on the mode you choose. In Practice Mode, every available mission is immediately accessible, letting players experiment with loadouts, entry tactics, and team AI without long-term consequences. This is where most players learn maps, test less-lethal builds, and optimize room-clearing flow.
Commander Mode is the intended progression experience. Missions unlock sequentially, officer stress persists between deployments, and poor outcomes compound over time. Injuries, excessive force, or botched arrests don’t just hurt your score; they destabilize your entire squad.
Grades, Scores, and What Actually Matters
Mission completion isn’t binary. Ready or Not evaluates your performance using a detailed scoring system that weighs suspect arrests, civilian safety, evidence collection, and adherence to ROE. Chasing an S-rank demands near-perfect execution, including minimizing lethal force and securing every objective.
Importantly, you can technically clear a mission and still fail strategically. Low grades increase officer stress and reduce long-term viability in Commander Mode. Progression isn’t about speedrunning objectives; it’s about consistency and control.
Soft Progression Through Knowledge and Loadouts
There’s no traditional gear unlock tree tied to mission count, but progression still exists in subtler ways. As missions unlock, players gain access to new operational contexts that reward different tools, from mirrors and wedges to gas, shields, and breaching charges. Understanding when to bring what is part of the progression loop.
Map knowledge becomes its own form of power. Knowing suspect spawn patterns, common ambush points, and civilian routes can dramatically reduce RNG and turn brutal missions into controlled clears. The game rewards preparation more than raw mechanical skill.
Why Mission Order Matters
The sequence of missions isn’t arbitrary. Each operation introduces mechanics or pressures that prepare you for what comes next, whether it’s tighter CQB, higher suspect morale, or morally ambiguous ROE scenarios. Skipping ahead in Practice Mode can be enlightening, but experiencing missions in order gives critical context to the game’s escalating tone.
Understanding how mission progression works is key to full completion. It’s the framework that ties together scoring, squad management, and tactical decision-making, and it sets the stage for exploring every operation the game has to offer.
Campaign Structure & Narrative Timeline (Early, Mid, Late Game Operations)
Ready or Not’s campaign isn’t a linear story with cutscenes, but it absolutely has a narrative spine. Missions escalate in scale, complexity, and moral pressure, pushing you from low-level patrol responses into city-wide crisis containment. Understanding where each operation sits in the timeline helps you plan loadouts, manage officer stress, and track true progression rather than just mission completion.
The campaign broadly breaks down into early, mid, and late game operations. Each phase introduces new threats, tighter ROE constraints, and environments that punish sloppy clears or over-reliance on lethal force.
Early Game Operations: Containment, Control, and Fundamentals
Early missions are designed to teach discipline under relatively controlled conditions. These operations usually take place in small, familiar locations like convenience stores, residential homes, and low-income housing complexes. Suspect counts are low, but unpredictability is high, forcing players to respect corners, doors, and compliance mechanics.
Missions such as Thank You, Come Again (gas station robbery) and 213 Park Homes (barricaded suspects in public housing) establish the core gameplay loop. You’re learning how to manage aggro, clear tight CQB spaces, and differentiate between armed suspects and non-compliant civilians without relying on DPS alone. Less-lethal tools shine here, and chasing arrests over body counts is strongly rewarded.
Narratively, this phase grounds the player in Los Sueños’ street-level decay. These aren’t terrorists or masterminds yet; they’re desperate criminals, addicts, and volatile individuals. The game uses these scenarios to build empathy and tension while reinforcing that every trigger pull carries consequences.
Mid Game Operations: Escalation, Complexity, and Moral Pressure
Mid-game missions expand both map size and systemic pressure. Locations become more complex, often featuring multiple floors, intersecting sightlines, and higher civilian density. Suspects are better armed, more coordinated, and far less likely to surrender without proper use of flashbangs, gas, or psychological pressure.
Operations like The Spider (nightclub raid), Valley of the Dolls (influencer residence), and Ides of March (hospital lockdown) mark a clear tonal shift. You’re no longer just containing isolated incidents; you’re preventing mass-casualty events. ROE becomes tighter, evidence collection matters more, and misidentifying a threat can tank your grade instantly.
This is where squad composition and utility synergy start to matter. Shields, door wedges, and coordinated breaches aren’t optional anymore. The campaign narrative reflects a city spiraling, with organized crime, ideological violence, and systemic failures colliding in public spaces.
Late Game Operations: High-Risk Raids and City-Wide Fallout
Late-game missions are the payoff, and they do not pull punches. These operations take place in sprawling, hostile environments like ports, server facilities, and fortified compounds. Suspect morale is high, equipment is military-grade, and ambushes are frequent enough that complacency gets officers killed.
Missions such as Sinuous Trail (data center) and Ends of the Earth (Port Hokan) demand near-perfect execution. Long sightlines test your rules of engagement, while dense interiors push endurance and communication. Stress management becomes critical, especially in Commander Mode, where a single disastrous op can cripple your roster.
From a narrative standpoint, this phase exposes the full scope of Los Sueños’ collapse. You’re not stopping crimes anymore; you’re responding to the consequences of years of neglect, corruption, and radicalization. The campaign closes not with triumph, but with uneasy stabilization, reinforcing Ready or Not’s grounded, unsettling tone.
Each phase builds directly on the last, both mechanically and thematically. Playing missions in order isn’t just about difficulty scaling; it’s about understanding why the city ends up where it does, and why your decisions along the way matter far beyond a single clear screen.
Full Mission List by Location & Operation Name
With the campaign arc established, it’s time to zoom all the way out and look at Ready or Not’s operations in concrete terms. Below is the complete, up-to-date mission list, organized by location and operation name, exactly as the game presents them. This structure mirrors in-game progression and makes it easier to plan loadouts, anticipate suspect behavior, and track full completion without missing any content.
4U Gas Station — Thank You, Come Again
This is Ready or Not’s onboarding mission, but don’t confuse simplicity with safety. A seemingly routine armed robbery quickly escalates due to tight sightlines, civilian density, and unpredictable suspect aggression. It teaches core mechanics like verbal compliance, ROE discipline, and evidence control under pressure.
213 Park Homes — Twisted Nerve
Set in a decaying residential block used for narcotics manufacturing, Twisted Nerve introduces vertical combat and claustrophobic interiors. Suspects are poorly trained but erratic, with a high chance of suicide-by-cop behavior. Shotgun breachers and wedges shine here due to door density and funneling hallways.
Neon Tomb Nightclub — The Spider
The first true stress test. Low lighting, deafening music, and packed civilian zones force disciplined target ID and pacing. Suspects blend into crowds, making less-lethal options and coordinated clears essential if you’re chasing an S-rank.
Streamer Residence — Valley of the Dolls
A modern luxury home masks a volatile hostage situation tied to online radicalization. Long sightlines, glass-heavy architecture, and armed suspects with civilian shields punish reckless entry. This mission is a turning point where misreads instantly tank your grade.
Los Sueños Medical Center — Ides of March
A hospital lockdown scenario that aggressively tests ROE awareness. Suspects wear civilian clothing, wounded NPCs clutter hallways, and sound propagation creates constant false positives. Slow clears, mirror usage, and airtight comms are mandatory here.
San Uriel Condominiums — Buy Cheap, Buy Twice
An illegal arms and trafficking operation hidden inside a commercial complex. Expect multi-floor engagements, barricaded suspects, and crossfires from unexpected angles. This mission rewards methodical room clearing and disciplined use of flashbangs over raw aggression.
Los Sueños Postal Facility — Greased Palms
A sprawling sorting center turned into a fortified criminal hub. Long corridors, warehouse sightlines, and heavy cover favor suspects with rifles. Smoke grenades and shield play dramatically reduce risk during objective pushes.
Rust Belt Auto Shop — Rust Belt
An illicit chop shop operating under industrial conditions. Tight mechanical spaces, low visibility, and frequent ambush points make this a close-quarters nightmare. SMGs and aggressive pieing dominate the meta here.
MindJot Data Center — Sinuous Trail
This is where the campaign pivots fully into late-game intensity. Heavily armed suspects, server aisles that act as lethal funnels, and extended engagement ranges demand perfect ROE execution. Armor choice and ammo economy matter more than raw DPS.
Port Hokan — Ends of the Earth
The campaign’s largest and most punishing operation. Port Hokan blends open container yards with dense interior clears, forcing squads to constantly adapt engagement ranges. Suspects are disciplined, well-equipped, and prone to coordinated ambushes, making this mission the ultimate test of everything you’ve learned.
Seen together, these missions form a deliberate escalation, not just in difficulty, but in thematic weight and tactical demand. Playing them in order isn’t optional if you want the full Ready or Not experience; it’s how the city, the systems, and your squad all reach their breaking point.
Mission Unlock Requirements & Progression Triggers
That escalating pressure isn’t just narrative flavor. Ready or Not’s campaign progression is tightly governed by unlock rules that enforce disciplined play, proper ROE compliance, and long-term squad management. You don’t simply click the next mission; you earn access through performance, restraint, and mental health preservation across your officers.
Campaign-Based Linear Unlocking
Ready or Not uses a mostly linear mission structure, where completing an operation unlocks the next major location in the campaign chain. Early maps act as mechanical onboarding, while later missions like MindJot Data Center and Port Hokan remain locked until their prerequisites are cleared. Skipping ahead isn’t possible without mods, which keeps the intended difficulty curve intact.
Mission Completion Ratings and Their Impact
Each mission is graded from F to S based on objective completion, suspect arrests, civilian safety, and ROE adherence. While a low grade still unlocks the next mission in most cases, consistently poor performance compounds long-term consequences. Higher ratings reduce stress accumulation and keep your roster viable for late-game operations.
Officer Stress, Morale, and Soft Progression Gates
This is where progression gets deceptive. Officers accumulate stress from lethal force, civilian deaths, and failed de-escalations, eventually becoming unfit for duty. If too many operators are sidelined or resign, progression effectively stalls because you’re forced to deploy under-strength or with compromised AI performance.
Mandatory Objectives vs Optional Completion
Primary objectives like securing all suspects and rescuing civilians are required to clear a mission and unlock subsequent content. Optional objectives, such as evidence collection or suspect survival, don’t block progression but heavily influence scoring and mental health outcomes. Ignoring them accelerates burnout, especially across multi-mission stretches.
Fail States That Block Advancement
Certain hard fail conditions immediately halt progression. Killing restrained suspects, excessive unauthorized lethal force, or failing to secure mission-critical civilians can lock the mission until replayed successfully. These aren’t RNG punishments; they’re deliberate checks on players trying to brute-force encounters.
Practice Mode vs Campaign Progression
Practice Mode allows full access to every map regardless of campaign status, but nothing completed there affects progression. Loadout testing, route planning, and suspect behavior study belong here, not in live campaign runs. Treat Practice as your sandbox, and Campaign as your ironman ladder.
Replay Value and Backtracking
Replaying earlier missions remains essential even after unlocking late-game operations. Cleaning up low grades, stabilizing officer morale, and experimenting with non-lethal or low-aggro clears directly improve your odds in brutal endgame maps. The system quietly rewards players who respect the long game over raw clear speed.
Mods and Custom Missions: What Progression Ignores
Community maps and modded scenarios exist outside the campaign progression framework. They don’t unlock core missions or affect officer stress, making them ideal for mechanical training but irrelevant for completion tracking. If your goal is true 100 percent completion, the vanilla campaign ruleset is the only metric that matters.
Mission Context Breakdown: Objectives, Threat Profiles, and Environments
With progression rules and fail states established, the next layer is understanding what each mission is actually asking of you. Ready or Not isn’t just a checklist of maps; every operation blends specific objectives, enemy psychology, and environmental pressure that directly influence loadout choices and squad behavior. If you’re aiming for full completion, context matters as much as mechanical execution.
Early Operations: Low Equipment, High Volatility
Thank You, Come Again (4U Gas Station) is the true onboarding test, but it’s deceptively lethal. Objectives are simple on paper, yet suspects have unpredictable aggro spikes and tight sightlines punish sloppy pieing. Civilians cluster near threat zones, making ROE discipline mandatory even this early.
213 Park Homes shifts the difficulty curve by introducing multi-structure clearing. Suspects are poorly trained but aggressive, often panic-firing through doors and walls. The environment rewards methodical room isolation and punishes rushing with crossfire angles that overwhelm AI teammates.
Mid-Tier Missions: Organized Threats and Layered Spaces
Twisted Nerve (Crack House) and The Spider (Talent Agency) mark the point where suspect behavior becomes coordinated. Enemies communicate, hold angles, and bait pushes, forcing players to rely on flash timing and disciplined wedge usage. Evidence collection here starts to matter more, impacting long-term scoring and officer stress.
Valley of the Dolls (Hotel) and Neon Tomb (Nightclub) escalate verticality and civilian density. Large interiors, stairwells, and dark corners amplify audio deception, while suspects blend into crowds. These missions punish tunnel vision and reward slow clears with rear security constantly maintained.
High-Risk Scenarios: Morale Checks and ROE Traps
Elephant (Campus Active Shooter) flips the pacing entirely. Speed becomes the objective, but reckless lethal force can instantly fail the mission. Suspects are lightly armored but hyper-aggressive, and every second lost increases civilian casualties, testing your ability to balance urgency with control.
Greased Palms (Postal Facility) and Buy Cheap, Buy Twice (Car Dealership) introduce wide-open interiors with long sightlines. Suspects are better armed and more willing to suppress, making armor selection and ammo economy critical. These maps expose weak positioning faster than raw aim mistakes.
Late-Game Operations: Militarized Opposition
Ides of March (Mindjot Data Center) and A Lethal Obsession (Streamer Residence) represent a sharp shift toward fortified suspects. Expect body armor, disciplined holds, and ambushes triggered by sound cues. Non-lethal tools lose reliability here, and lethal precision becomes unavoidable if you mismanage entries.
Hide and Seek (Hospital) stresses endurance over burst aggression. Long corridors, patient rooms, and roaming civilians stretch clears into drawn-out operations. Officer morale degradation becomes a real concern, especially if optional objectives are skipped to save time.
Endgame Maps: Environmental Punishment
Rust Belt (Port Hokan) is the culmination of Ready or Not’s design philosophy. Massive scale, exterior-interior transitions, and heavily armed suspects turn positioning into a survival mechanic. Weather, lighting, and distance all affect hit consistency, making this a test of squad cohesion rather than individual DPS.
Every mission builds on the last, not just in difficulty, but in how it teaches restraint, planning, and adaptability. Understanding these contexts turns the mission list from a linear grind into a deliberate tactical campaign, where preparation matters as much as execution.
Optional Objectives, Evidence Collection, and Completion Ratings
Clearing a map in Ready or Not is only the baseline. True progression comes from how completely and cleanly you execute each operation, and that’s where optional objectives, evidence handling, and final ratings quietly shape the entire campaign. These systems are what turn a successful breach into a high-grade operation, especially on late-game maps where margin for error is razor thin.
Optional Objectives: The Hidden Progression Layer
Optional objectives are mission-specific tasks that go beyond neutralizing threats. These range from securing specific suspects, locating bomb components, recovering servers or hard drives, or rescuing priority civilians tied to the narrative context of each location. While technically optional, skipping them directly impacts your final rating and long-term performance metrics.
Early missions use optional objectives as teaching tools, reinforcing arrest mechanics and compliance control. Later operations like Mindjot Data Center or Port Hokan weaponize them, forcing you to split attention between lethal threats and environmental objectives under pressure. Ignoring these tasks might save time, but it always costs you score and campaign integrity.
Evidence Collection: Scoring Starts After the Shooting Stops
Every unsecured weapon, dropped firearm, or hostile body left unchecked is lost score. Evidence collection isn’t busywork; it’s a mechanical expression of ROE discipline. Arresting suspects intact and securing their weapons yields significantly higher ratings than lethal force, even when lethal engagement was justified.
Large maps amplify this system. Hospital and Port Hokan punish sloppy clears because evidence is spread across massive play spaces, often behind locked doors or secondary routes. Teams that fail to backtrack and secure all firearms routinely miss out on higher grades, regardless of how clean the initial firefights felt.
Civilians, Arrests, and ROE Enforcement
Civilian handling is where many otherwise strong runs collapse. Missed civilians, improper use of force, or accidental injuries apply immediate score penalties that compound fast. Even one ROE violation can drop a potential S-tier run into mid-grade territory.
Arrests are always weighted more heavily than kills, especially in missions designed around hostage recovery or domestic threats. Active shooter scenarios may allow lethal force more freely, but even there, unnecessary aggression can quietly sabotage your rating once the debrief screen appears.
Completion Ratings: What the Game Is Actually Judging
Completion ratings are calculated from a mix of suspect outcomes, civilian safety, evidence secured, officer survival, and optional objective completion. The letter grade isn’t just cosmetic; it’s a diagnostic tool that tells you exactly where your execution broke down. High grades demand restraint, patience, and full-map control, not just fast clears.
Late-game maps are balanced around A- and S-rank expectations. Rust Belt, in particular, assumes near-perfect evidence discipline and minimal ROE violations if you want top marks. The rating system reinforces Ready or Not’s core philosophy: tactical dominance is measured by control, not kill count.
Why This Matters for Full Completion
For players aiming to fully experience Ready or Not’s mission list, optional objectives and evidence handling are non-negotiable. They’re the connective tissue between narrative context, mechanical mastery, and progression tracking. Mastering these systems is what transforms the mission list from a checklist into a true tactical campaign, where every decision echoes beyond the final breach.
Post-Launch & Updated Missions (DLC, Patches, and Content Expansions)
Once you understand how completion ratings and ROE enforcement truly work, the post-launch content hits harder. These missions aren’t just more maps to clear; they’re tuned to punish sloppy evidence handling, rushed breaches, and poor arrest discipline. VOID Interactive has steadily expanded Ready or Not’s mission list after launch, layering new locations and reworked scenarios directly into the existing progression flow.
Home Invasion DLC Missions
The Home Invasion DLC marked the first major post-launch content drop, shifting focus toward close-quarters residential threats where ROE pressure is at its highest. These missions are deliberately claustrophobic, with tight hallways, civilian-heavy interiors, and suspects blending into domestic spaces. Loadout mistakes here are brutal, especially if you overcommit to lethal force.
Dorms places the team inside a dense university housing complex, where suspects, students, and improvised barricades collide across multiple floors. Sound discipline matters more than raw DPS, as suspects frequently reposition through shared walls and stairwells. Expect heavy civilian saturation and evidence hidden in personal rooms that are easy to miss during fast clears.
Valley of the Dolls escalates the residential theme into a luxury estate with sprawling interiors and layered verticality. Long sightlines suddenly snap into tight room clears, forcing constant optic and engagement-distance adjustments. Optional objectives and hidden evidence are spread across secondary wings, making full-map control mandatory for high grades.
Free Post-Launch Mission Additions
Beyond paid DLC, Ready or Not has continued to receive free mission additions and scenario expansions through major patches. These updates typically slot into the existing mission lineup rather than replacing earlier content, ensuring progression remains intact for new and returning players.
Post-launch missions lean harder into hybrid threat profiles, mixing active shooters, barricaded suspects, and high-risk arrests in a single operation. This design forces squads to dynamically adjust ROE mid-mission instead of relying on a single engagement mindset. Arrest weighting remains high, reinforcing the game’s emphasis on control over kill efficiency.
Mission Reworks, Variants, and System Updates
Several launch missions have received substantial reworks post-release, altering suspect counts, civilian behavior, evidence placement, and patrol routes. These aren’t cosmetic changes; veteran players will notice tighter aggro ranges, smarter suspect flanks, and more punishing ROE traps. Maps like Gas Station, Hotel, and Port have evolved into more demanding versions of their original forms.
Scenario variants introduced through patches also expand replayability without bloating the mission list. Active shooter versions, barricaded suspect setups, and time-sensitive civilian rescue objectives remix familiar spaces into new tactical problems. For completion-focused players, these variants still demand full evidence collection and proper arrests to secure top-tier ratings.
How Post-Launch Content Fits Into Full Completion
All post-launch missions and updates are fully integrated into Ready or Not’s grading and progression systems. Skipping DLC or ignoring updated maps leaves noticeable gaps in your overall completion profile. These missions represent the current design philosophy of the game, where restraint, methodical clearing, and evidence discipline are pushed harder than ever.
If earlier missions taught you how to survive, post-launch content tests whether you’ve mastered control. Every update reinforces the same truth: in Ready or Not, the hardest missions aren’t about winning firefights, but about proving you never lost control in the first place.
Tracking 100% Completion: Checklist for All Missions and Variants
With post-launch reworks fully folded into progression, tracking 100% completion in Ready or Not is no longer about simply clearing every map once. Each mission must be completed under all available scenario variants, with arrests, evidence, and civilian safety all factored into your final grade. If you’re aiming for true completion, this checklist is your operational blueprint.
How Completion Is Counted
A mission only counts as complete when every available variant tied to that location is cleared. That means standard barricaded suspect operations, active shooter scenarios, raid-style entries, and any time-sensitive civilian rescue setups introduced through updates. Skipping a variant leaves a permanent hole in your progression, even if the map itself shows as cleared.
Grades matter, but variant completion matters more. You don’t need S-rank across the board for 100%, but you do need every mission state logged as finished.
Base Game Missions and Locations
Use the list below as your master checklist. If a mission appears here, every variant attached to it must be completed at least once.
– 4U Gas Station
Location: Urban roadside gas station
Context: Early-game suspect containment with tight civilian density and fast escalation potential.
– Thank You, Come Again
Location: 4U Gas Station (alternate scenario)
Context: A more volatile remix emphasizing active threat response and faster suspect aggression.
– Twisted Nerve
Location: 213 Park Homes (Meth House)
Context: Close-quarters drug operation with heavy civilian overlap and erratic suspect behavior.
– A Lethal Obsession
Location: Suburban streamer residence
Context: Barricaded suspect scenario built around traps, blind corners, and evidence discipline.
– Valley of the Dolls
Location: Talent agency office
Context: Human trafficking investigation with layered interiors and high arrest priority.
– Elephant
Location: Public school campus
Context: Active shooter response with extreme time pressure and non-linear threat paths.
– Neon Tomb
Location: Underground nightclub
Context: Low visibility, high civilian density, and suspects embedded in crowds.
– Brisa Cove
Location: Beachfront apartments
Context: Vertical clearing with long sightlines and multiple suspect factions.
– Greased Palms
Location: Car dealership and warehouse
Context: Large open interiors where crossfire management and restraint are critical.
– Mindjot Datacenter
Location: Server facility
Context: Heavily fortified suspects, choke-heavy layouts, and punishing ROE traps.
– Ides of March
Location: Hospital complex
Context: Sprawling interiors, wounded civilians, and unpredictable suspect patrols.
– Ends of the Earth
Location: Port Hokan shipping yard
Context: Late-game gauntlet combining long-range threats, armor-heavy suspects, and massive map scale.
Scenario Variants You Must Clear
Each mission may include one or more of the following variants depending on patch state and updates:
– Barricaded Suspects
Methodical clearing with arrest-first scoring pressure.
– Active Shooter
Time-sensitive threat neutralization where hesitation costs civilian lives.
– Raid
Increased suspect count, higher armor prevalence, and aggressive flanking AI.
– Bomb or Evidence-Critical Scenarios
Failure states tied to missed objectives rather than squad wipe.
If a mission offers multiple variants, all must be completed separately to count toward full completion.
Reworked Missions Still Count Separately
Post-launch reworks overwrite older versions but reset completion expectations. If a map was updated after you originally cleared it, you must replay the current version for it to register properly. This is especially important for Gas Station, Hotel-style interiors, and Port Hokan, which received substantial AI and layout changes.
Think of reworks as new exams using familiar classrooms. Your old clear doesn’t carry forward.
Final Completion Tip
If you’re unsure what’s missing, check your mission select screen carefully. Any map without all variant icons filled is incomplete, even if you remember beating it months ago. Ready or Not rewards patience and control above all else, and 100% completion is the ultimate proof you mastered both.
Clear slow, arrest often, and never assume a mission is done just because the shooting stopped.