I don't know the name of this map, because I forgot what it was when I took these screenshots.
But here's a base that will not get humped by any alien if there's at least a human to watch over it. Note: It requires S2 to be at full potency.
As you can see below, the reactor has been moved to the corner to allow a safer and a more secure spot. The armoury is in the corner, and two spawns are next to the reactor. The defence computer is also in a safe spot. On top are two turrets to get rid of crawlers (top right).

Here we see a semi-circle of turrets. Very effective to lead idiotic aliens into the base. While getting raped by gunfire. Three effective forcefields, which keep aliens out. Three are REQUIRED if you want NO holes in which any alien can sneak through. The top, as said in the above picture, is guarded by two turrets which help with support-fire for any humans. Also an effective manoeuvre.
