Uve got a problem with the water (and waterfall), their textures are black and pink.. so fix this and theres also the elevator.. u didn't pick the right textures for it + it's small so people can hide behind it
Rooms are empty, i mean theres a low amount of boxes, vending machines in them..
the T rex shows as an ERROR, fix it
things to fix.. :
- Elevator size and textures
- Water and waterfall textures
- More boxes and vending machines (don't forget the security room close to tanks, put in it a box or a vending machine )
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maybe you can make an elevator come after 5 minutes and get on the top of the building, then it will wait for like 1 minute till people gets in it and after that it flys away and zombies die with a nuke..