This is a really nice little map by Swedish Soldier, it's not huge but it's very nicely filled out with a satisfying mix of combat, exploration and a couple of small puzzles and skill tests. It's possible to complete it SP on XPM servers, but it's more fun if you are a small Coop team. 4 is about the limit though..
You find yourself dropped into a rocky ravine by Apache helecopter, and you are immediately pitted against Human and Alien forces alike, including the dreaded headshot-massn snipers, raging gonomes, a minigarg, Hgrunts and a tank (which can be reluctant to die, and sometimes gets its barrel jammed in the fencing) - all of which make for an interesting and rewarding game.
Everything works the way it should, except for the tank which is sometimes indestructible, and one really jarring and flow-breaking forced respawn into the middle of a room, having successfully destroyed the Alien portal.
I hope Swedish Soldier approves; I have taken the liberty of removing the forced respawn, and instead made the teleporter reverse direction so that you can return from the final battle by the same means you arrived. I made no other changes, except to add 50 AP to the cfg file.
This is a nicely designed and executed map, try it out! If you get stuck after the tank, follow the 'Additional Info' link to the forum page - the answer awaits..