Nice!
You could have always had him turn in the hummer, that always adds a nice twist to the game I find, (my last battle report, one of the troopers turned in the helo as it was leaving the table... very cinematic!).
Like the alternative theme too, ZMD's: I've read the comic, so have you thought about spawn points to reflect the story line?
Cheeta's done some zombie storage units, (sci-fi crates from Fenris Games) would be worth taking a look at those, oh and the turtleback and softback Hummers that Fenris do to bulk up your motorpool (got em and love em).
Finally nice Tag rangers/marines, like the colour scheme, very accurate.
Cheers
The Commander