To maximize your damage and reward tier during the Police Chief Vault Trap Operation, complete your base and troop preparations before the event timer begins. Arriving with deployed marches, wounded units, or unconfigured presets costs valuable rally cycles during the limited operational window.
Follow this sequential checklist prior to the event start.
1. Recall All Map Queues Early
Issue return orders to all outdoor gathering, hunting, or garrison squads at least 10 to 15 minutes before the event begins.
- Prevent march delays: Squads gathering on distant tiles can take several minutes to return home. If they are in transit when the Vault Trap opens, they cannot join the opening rally wave.
- Save march speedups: Recalling squads early avoids wasting acceleration items to rush collectors back to your precinct.
- Verify idle slots: Check your station march interface and ensure all primary queue slots show as idle and ready for deployment.
2. Empty the Hospital and Top Off Rosters
The Vault Trap relies on pure offensive output, meaning missing high-tier troops directly lowers your damage score.
- Heal all casualties: Clear light and severe injuries from your medical queues so your total hospital bed count is at zero.
- Avoid mid-event bottlenecks: A full hospital entering the event risks overflow casualties if rally engagements take damage, forcing you to spend healing speedups during active waves.
- Finalize unit batches: Complete any troop training batches close to finishing so your highest-tier offensive units are in your active reserve.
3. Relocate Close to the Alliance Vault Trap
Rally travel time is the primary factor limiting the number of waves your alliance can run during the timed window. Marching across wide territory stretches wastes minutes per run.
Teleport your precinct base into the alliance hive cluster immediately adjacent to the alliance Vault Trap structure. Positioning bases in tight rings near the objective reduces travel times down to seconds. This allows squads to strike, return home, resupply, and enter the next departing rally queue without delay.
4. Designate Rally Roles and Set March Presets
Coordinate member responsibilities ahead of time to keep alliance damage high and deployment fast. Players with the largest rally capacity, highest combat officer skills, and strongest military research should launch all rallies.
| Role | Primary Objective | March Configuration |
|---|---|---|
| Rally Leader | Maximize damage multipliers and rally capacity | Highest-tier combat units, primary offensive officers, active lethality boosts |
| Rally Joiner | Fill leader capacity instantly without slowing marches | Saved one-tap presets, matching troop types, minimal low-tier filler |
If you are joining rallies, configure your formation presets in advance. Manually selecting officers and troop counts for each wave causes missed departures. Saved damage presets allow you to tap the alliance rally notice, select your squad, and deploy within two seconds.
5. Check Energy Reserves and Activate Boosts
Joining back-to-back rallies depletes event energy rapidly. Review your supplies before the countdown ends:
- Stock energy packs: Check your inventory for stamina or energy recovery items so your runs do not stall halfway through the event.
- Apply combat boosts: Activate general attack buffs, troop lethality bonuses, or officer talents roughly five minutes before the first rally launches to ensure full duration coverage across the battle.
Free Police Chief Codes
Current active codes and how to redeem them.
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Player Comments
91 players commented on this guide.
Good guide for Police Chief players. The early game part was useful.
The tips are practical and easy to follow.
This saved me time in the early game.
Nice guide. I am checking the other Police Chief articles next.