MA-64K-DarkSurvivor:
Your ship, not big enough to fit even really one person, crashed in a crater. You defend yourself from waves of monsters until a rescue vehicle comes and gets you. Map doesn't have any glaring errors.
MA-300K-Hexahedral:
Sort of a churchy feel, there's a somewhat visible Warlord that fires redeemers, and a few mantas around the place. Kill the Warlord to win.
MA-Invasion:
Crappy bot pathing, never played it all the way through to determine if it ever ends. Mostly SkaarjMilitary monsters, spawnpoint is at another location... you teleport in.
MA-Dour:
Arena setup, several SkaarjAssassins and one massively powerful Krall. Kill the Krall and you win.
MA-Monstrosity:
1 room, 1 corner has halls for defensive fighting. Monsters attack in waves, new ones entering through concealed panels and vents in the ceiling.
MA-Unnerved:
Arena setup, one mega-healthy Warlord and several pupae. Kill the Warlord to win.
MA-TheShit:
Not bot pathed well. Boxy passages, mostly underwater. Fight many sea creatures, kill the Queen to win.
MA-Source:
A Skaarj nest, teleport in from weaving tunnels surrounding it. Kill the Queen to win, guarded by pupae and SkaarjWarriors.
MA-Twilight:
Kind of a beachy resort feel, some Slith and a massive WaterTitan, kill Titan to win.
MA-Warlords:
Badly named map, as there's only 1 Warlord on it. Kill him to win, many pupae to get through.
MA-Warriors:
Arena feel, multiple energetic Skaarj with different abilities, each locked up and released after another is killed. Teleports in are kinda laggy.... went for a Stargate effect.