I see your Hayden and Hayden b (B for Boobs!) and I think of Akanke. Give her the same very minimal top and replace the dagger at her side with a holstered pistol and you have an exotic beauty ready to take on zombies, vampires, aliens, or whatever.
Similarly, Gina, talk about a woman looking like she's ready to throw a punch! Maybe that big bulky bracelet would allow for a model with two alternate hands, one with katana one with pistol?!?! I think she'd make a much better 'lady in dress with pistol' than Morgan
Ever think of taking Grant, Suzi and Tony b and converting the gun into a standard Mac-10 (without supressor) rather than the futuristic version they seem to have?. Grant might look good with some sort of assault rifle as well
Okay the above were serious suggestions, this one is a big further afield.
Wolf the Zombie Hunter/ Apocalypse survivor.
-wears jeans and massive boots
-wears just a 'wife-beater' t-shirt (http://www.bigdonsboys.com/bodybuilders/pages_28_32/images/6_4_240_bodybuilder_shirt_paul_003.jpg
only problem is, what weapon would work for him?
Street sign pole pulled up from the ground, big blob of sidewalk cement still on one end being used as a club? (with bent street signs still on the bottom)?
Or a gun.
a really big gun.
a REALLY big gun.
DShK and/or it's modernized near twin brother the Kord.http://militarytimes.com/blogs/gearscout/2010/03/06/dshk-afghanistan-gearporn-part-i/http://zonawar.ru/rash_guns/rg_pulemet_kord_eng.htmlhttp://img237.imageshack.us/img237/6569/594808rq6.jpg
Wolf would look a lot more balanced carrying one of these than this guyhttp://24.media.tumblr.com/tumblr_m6bbixB8Qu1qmqs6fo1_500.png
Maybe have Wolf firing it 'Rambo style' (this gun is at least double the size of the M-60 Rambo was wielding)