Airport is the third and final really tricky map to pull from the pool, due to the tight quarters and the two checks outside of the building.

Just inside the terminal, this first check is just across the service desk.

On the opposite end of the lobby, directly next to the ramp leading to the second level.

Coming from the second level, this location is just down the ramp in the hallway overlooking the tarmac.

Just outside the control tower, in the tiny corridor to the left (facing the tower proper).

This location is in the lower level of the tower, down the ramp at the back of the room.

Inside the tower itself, just behind the pillar.

The two outside checks, just opposite each other in the alleyways straddling the terminal.