If you had any doubt that Blizzard went all-out with their StarCraft 2 map engine, this should quell your concerns. YouTube user malou5a showcases his newest StarCraft 2 campaign creation; a fully-functioning third-person zombie shooter map.
Featuring support for up to 8 players, bullet shells with realistic physics, a flashlight effect, power-ups, aim and weapon swap animations and lots and lots of zombies with automatic AI. While it’s not perfect, it’s a clear indication of how much work Blizzard put in to assure us users had a rich experience, including the opportunity to design our own spin-off games.[via]