Big, and rambling. Works as a practice level.
Short on weapons, but you can use the doors to crush your enemies... Whatever you do, don't let the Bobs out.
Another modification of Waldo World. New textures, light switches, a control room, a teleporter maze... Not a bad job at all. (May need more players to be fun than Waldo World does, owing to its larger size.)
Big. No docs. Plays okay, though.
See Phor Play
A work in progress-the first 3 Levels of a 17 level scenario.
Well, don't let me stop you. (I would, though.)
I found it cramped. You might not, though.
I hate the textures, but the level's pretty fun with three players. Look for the Spanker!
Gives you marines to fight on your side (two kinds) and two new (nasty) weapons.