Reminds me of basic training!
I don't really like having to shoot them in the head to kill them, but hey, it's supposed to be hard, right? I've heard about Swift 3D that's supposed to be able to create some great 3D graphics for Flash. Haven't been able to check it out yet, but maybe that's what you're looking for.
I liked this game. Just like the pop up "Ivans" at Ft. Knox this past summer.