I'll explain what i can see from this map
I don't think aliens are in a wide open space, but in some kind of hole, so if it's deep enough, humans cant shoot it.
Maybe add some paths from the hole/alien base to the human buildings/base.
Humans can exit the base with the gate (open or closeable) and also through the doors, though i think it would be nice if some sort of generator has to be activated, that can also be turned off by the aliens ofcourse (with a cooldown perhaps), before using the gate and maybe some other things on the map (base defences?).
Anyhow this is how i see the map abit :wink: .