Layout : A basic office complex, two times the size of the current cubicles area where you can find one singular admin key card. This gives you access to the next area, a large room with file containers.
You'll be able to find dockets and the new enemies, humanoid projectile enemies which will force you to employ proper CQB tactics.
The last area is a server room with high value data drives and technology, which sells for 900 - 1000 nuts per piece. But opening it requires a trial via wave defense, where you'll have to fend off enemies until the door opens.
Enemy / Obstacles : The enemies are gorilla's or robotic gorillas with firearms. (revolvers to shotguns.) The AI should be able to basically coordinate with eachother. And of course, their weapons are weaker.
Example, if you encounter two enemies with a revolver and a shotgun, the Revolverman will suppress you with rapid fire while the Shotgunman comes in from the side.