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How to attack Lair Basement

Lair basement has two site rooms side by side: Lab Support (west) and Lab (east). Attackers reach it from the east (Yellow Stairs or Warehouse → Missile Hallway → Lockers) and from the north (Courtyard Tunnel → Lab Exit). Most of the 1F floor above (Armory, Reception) can be opened, so basement pushes should always be paired with vertical from 1F.

Open the reinforced Lockers wall into Lab, pressure the Lab Exit doors and play the 1F floor above so the anchors are hit from three sides.

Roles

Hard breach

Stand in Lockers on the wall shared with Lab (orange line). Breach on the "clear" call and let the entry player swing first.

ThermiteHibanaMaverickAce

Anti-gadget

Clear Bandit/Kaid/Mute on the Lockers → Lab wall, then any Mira or camera looking at the plant.

ThatcherTwitchFuzeKaliFloresBrava

Vertical / soft breach

Open the 1F Armory hatch (over Lab Support) and the Reception floor over the south half of Lab.

SledgeBuckZofiaRam

Intel

Drone Lab, Lab Support, Toxin and Stock. Call any Mira or shield before the breach.

IQDokkaebiLionIanaZeroSolid Snake

Entry

Swing the breach with a trade partner, or push the Lab Exit doors when the breach opens.

AshBlitzYingFinkaAmaruSensStriker

Flank watch

Hold Missile Hallway / Yellow Stairs and Courtyard behind the team during the push.

JackalNomadGridlockNøkkDeimosRauora

Plant support

Cover the planter from the breach; after the plant, deny the Lab Support and Toxin doors.

MontagneGlazBlackbeardCapitãoOsaGrim

Lab Support / Lab

Lair Lab Support / Lab attack planLab ExitLockersLabStockSupportMissileMissile HallwayToxinStaffStaff StairsCourtyard StairsCourtyardNorth DockCourtyard TunnelWarehouseWarehouseYellow StairsFiltrationBlue StairsBarrelsElectricalAB1413121110987654321
  1. Move: Yellow Stairs → Missile Hallway → Lockers
  2. Move: Courtyard Tunnel → Courtyard → Lab Exit
  3. Drone: Drone Lockers and the Lab wall
  4. Drone: Drone Lab Support through the Lab Exit door
  5. Vertical: 1F Armory hatch drops into Lab Support
  6. Vertical: Open the 1F Reception floor above Lab
  7. Enemy likely: Lab anchor
  8. Enemy likely: Toxin player
  9. Hard breach: Lab wall — breach it from Lockers
  10. Move: Push through the breach into Lab
  11. Plant: Lab, next to the Lockers breach
  12. Hold: Lockers, watching the breach
  13. Hold: Missile Hallway (flank)
  14. Hold: Lab Exit, watching the doors

Red A/B circles are the two bomb spots. Numbers on the map match this list. Positions are drawn on Ubisoft's official blueprint and are approximate.

Team execute

  1. Two players come down Yellow Stairs (or in through Warehouse from the docks) into Missile Hallway and Lockers.
  2. One player takes the Courtyard Tunnel to Courtyard and Lab Exit.
  3. One player takes 1F Armory / Reception and opens the floor and hatches above the site.
  4. The anti-gadget player clears the Lockers → Lab wall, then the hard breacher opens it.
  5. Push Lab from the breach and the Lab Exit doors at the same time; plant near the breach.

Plant

Plant Lab close to the Lockers breach, so the player in Lockers and the player playing the 1F Reception floor above can both see the defuser. Lab Support is the backup plant from the Lab Exit doors.

Post-plant

  • Lockers, looking through the breach
  • 1F Reception, playing the floor above Lab
  • Missile Hallway (east flank)
  • Lab Exit / Courtyard (north flank)

Defender setups for this site →

Pitfalls

  • Attacking only from the docks — defenders stack Lockers and Missile Hallway.
  • Ignoring 1F: defenders there shoot down through the floor and hatches.
  • Forgetting the Yellow Stairs flank behind Missile.

If defenders…

  • If the Lab wall stays denied, push the Lab Exit doors and plant Lab Support under the Armory hatch.
  • If the 1F hatches are reinforced, open the Reception floor instead.
  • If Missile Hallway is locked down, move both dock players to the Courtyard side.