A huge, organic-feeling map in which 8 people could play with breathing room. More aliens than you can shake a stick at... this one works fine as a solo stress reliever, as well.
A multilevel arena map, with tweaked physics. I'm not usually a fan of aliens in net games... but in this case, I'd make an exception. The hill is the entire arena floor, and the baddies generally stay down there.
Loosely based on the Mystic Base map from the Mystic Map Pak, this is a netmap with a twist... it can (sort of) be played solo. That is, there is a mission, of sorts, laid out by the terms.