Desolationp2 - "no available spawn points, please wait…"
Fixing the spawn points puts you in an elevator, which seems to fail in working.. Noclip gets you into an arena, then after finding a weak floor slab, you drop into an underground rail system where you dodge a garg and spawning aliens until a door timer expires and allows you to proceed. Some wall-clinging, then into a final arena where you can 'build' friendly turrets (I think, anyway) to defend against spawning monsters. The map ends after another timer.
Technically the map is 'losable' - it seems that if your two allies die, then you get "bad ending message" but since all the sequences seem to be broken, it's hard to say for sure..
Since there is not much combat, the main sequences are just waiting for various timers and much of it appears to be non-functional it's probably not worth fixing properly.. :/