Nighthaven Labs is won or lost at the 2F IT walls, the most contested walls on the map, and most sites are held by trading 2F space for time.

Layout

Three floors. On 2F, attackers pressure from IT, Rafters, Ebox, the Aqua hallway and the Meeting side. The Aqua stairs link 2F to Fork on 1F, and the Lobby stairs climb to the Mezzanine. Below, the Exo stairs run from Break down to the basement and the Cargo stairs drop out of Garage. The floors between 2F and the 1F sites are soft, so losing top floor opens a lot of vertical play.

Bombsites

2F Command Center, 2F Servers

The most defensible site. The two IT walls stay shut with wall denial for as long as possible. Rafters gets a rotation so defenders can waste time there before falling back, with a spare reinforcement kept to seal it off afterwards. A reinforced wall on the Aqua hallway, with footholes beside it, gives a hard crossfire when Aqua falls.

B Assembly, B Tank

The three outside walls are reinforced, and footholes in the Animus wall stop attackers from using it as cover. All hatches are reinforced. Holes toward Exo and Cargo let defenders contest both stairs from deeper in the site, and Storage above is worth holding for its vertical holes onto the default plant.

1F Storage, 1F Control Room

Garage's outside walls are reinforced, and rotations connect Control with Cargo and Storage. 2F is set up the same way as for Servers and held for about a minute and a half before falling back. Late in the round, a defender in Garage can watch the Storage window.

1F Kitchen, 1F Cafeteria

The Cafeteria corner is the power spot against the Kitchen window, and knee-high holes in the Freezer wall cover the window jump. Top floor matters here: the top of the Lobby stairs is the position that keeps attackers off the vertical play.

Holding the site

Every site follows the same plan: contest IT and Rafters early, then layer back into a bunker and play trades.