Deployment rule: Flamethrowers first, Tesla Coils behind them, Cryo Beam held in reserve. Community release guides describe the tower portion as forgiving once both tower branches are well upgraded.
The legal loadout
| Tool | Role | Where to use it |
|---|---|---|
| Flamethrower | Front pressure / setup | At corners and narrow approaches before the main cleanup area. |
| Tesla Coil | Cleanup / light control | Behind Flamethrowers, where separated survivors enter 360-degree range. |
| Cryo Beam | Emergency control | Across a lane that is about to spill past the fire coverage. |
Clear sequence
- Use only the named set. Do not place another tower type or activate an unrelated ability.
- Cover the approach with Flamethrowers. Corners give the fire more time on a compressed lane.
- Place Tesla behind the flame line. It should clean up weakened orcs, not compete for the untouched main mass.
- Hold Cryo Beam. Freeze the exact lane that begins to leak instead of spending the charge on a stable wave.
- Accept a non-perfect survival. The official wording requires surviving Level 4.1, not taking zero damage.
Do not confuse tower names and ability names
The official achievement description lists Flamethrower, Tesla Coil and Cryo Beam. Follow the in-game selection exactly; do not add Nuke, Strafe, Missile or another tower even if the final lane becomes uncomfortable.
If the last lane leaks
- Move the front Flamethrower to cover the corner for longer.
- Spread rear Teslas so their ranges overlap without all targeting the same first orc.
- Save Cryo until the leak is visible rather than freezing the opening wave.
- Invest in the Flamethrower and Tesla branches before repeating the challenge.