meh...
MARKSMEN is definatly the word here since you can take out everything except maybe the bosses with the sniper rifle. It's clear you were aiming for fps style which would require some god like programming in order to work in flash but because no such coding exists yet it meant your game was a kind of on rails shooting gallery.
THE GOOD
sniper rifle is your friend and is probably the most impressive thing in the game
able to move far right or far left for cover fps style
THE BAD
the only real strategy to this game I've already listed
the night and day thing is annoying and too fast x.x
zombies with guns? cliche much?
why is there 2 health bars when you only ever use 1 character? Is he like your second life or something?
I'm sure I can list more thing but am too lazy right now XP