Great map! Especially as a first. Love the changes as the waves progress!
Only problem I see is I get some framerate drops when the walls go up (it's a lot worse as the walls are going up but then isn't nearly as bad throughout the wave while they're up).
I'm not sure if it's when I look at the center of the map from the edges or when I'm looking at certain walls, but looking in some direction causes some framerate drops.
Probably just needs to be optimized a little bit.

Yes tell chezz to make this map a borderline perk training map.

Lookin' forward to trying this map out!
And no low grav please D:
Unless you want your map to be a borderline perk training map.

Did this map have low gravity?? Please tell me it did.