Very good
First off the guy below me, its not racist Judaism isn't a race moron
Second, it was a really good game but you could improve a bit.
1) No auto-reload, so having to reload was a bitch when stuff kept killing the base while you had to reload.
2) Switching weapons was bad, like I wanted to switch from rocket to cross bow and I had to go all the way through, maybe make the weapons numbers so you can pick that way (also maybe you'll think of some more)
3) For the cross bow it was ok but a fast pistol is all, i thought it would pierce through the weaker ones being that it was so expensive