Kill them! kill them all!
there are 4 faction;
coalition
dummy
humans
and zombies
truly a game of legends very underated.
WOW
some of the games marvels are how a 2d shooter has such great physics. shoot a dummy in the face with a 60. cal, BACKFLIP! in the leg, FRONT FLIP, chest, FLY! also when you shoot a jet and it blows up its 2 engines fly and kill all in its path, if its slow, it doesn't harm you, but at speed it dangerous.
overall i recommend this to anyone who love killing, violence and building.