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well you see there is this little thing called copyright heh, but tom says just go work for capcom and it will all workout heh

I guess, but you knw what I meant right? You gots a lazy zombie, a super zombie then a mutant... that kind of thing.

You can also have zombies that shoot acid while firing a gun or an extremely quick monster ambushing a party of survivors (House of the Dead?)

I would like to have something, much like a semi-contained zombie infestation. For the sake of the game, just have it confined to a medium-to-large sized city. Some of the features would include:

-Improvised weapons: anything from a toilet cover to a tractor.
-Skills system: a way not to enhance the character himself, unless say he/she works out, but instead have them find DYI books or learn by experience. Even driving. You can't have everyone with 1000 health and rocket launchers from the start.
-A divided health: instead of saying they have 100 hit points, try giving them a certain amount of hit points for a certain part of their body. That way you could get injured like in real life. If bad enough you could become immobilized which would encourage a team system, as its always good to have backup than being a lone wolf.
-Clothes: this could range anywhere from a flannel shirt & jeans to a Nomex Flightsuit, all with their own counters on how they can prevent damage to the body part it is covering. Like wearing ripstop gloves could prevent a zombie from biting off your hand.
-Survial: instead of just having the person automatically go througout the city, why not have a requirement for food and water. If they get thirsty, they may begin to dehydrate, if hungry, they may starve and your ability to fight would be hindered.
-Class Benefits: now i know you were already dabbling in this, but instead of just giving the people the chance to be a soldier, (which the vast majority will do, believe me.) why not have incentives to choose something else. Sure, the soldier can hit a target the size of a grapefruit at 100 paces easily, but since hes now all alone after a disatrous attempt to eradicate the zombies, all he has an excess of is ammo, and only his emergency ration packs. While the civilian can be counted on to have carried a few cans on him/her, while their survival is assured for a longer time, obviously they wont have that much in the way of weaponry, nor the experience to use it.
-Restricted Areas: as the zombie infestation takes a turn for the worse, there will be a perimeter around the quarantined city. This is the boundary of the hell you have been imprisoned to. And with death squads all over the place, wether alive or undead, they wont take any chances and will kill anythign moving past them on sight.
-Mob Mentality: the zombies don't just wander aimlessly hoping to catch a meal. They will begin to band together as they find one another, until the pack is either eradicated, or they grow larger.
-Death: its inevitable even in a world without the undead, and since this is a game, you'll be given a second chance. However, when you are finally found and put back together, you dont have anything left. Your lucky to have underwear underneath your hospital gown. However, you can go back and find your gear, but so can anyone else.
-Bartering system: there are still people around who have things others need, people who have not only thrived, but profited in this apocalypse. While money is still usable, so are other goods. You can trade with people, buy things, anything you need to stay alive one more day.

Now, im sure i'll think of something else later, but im running short on time, so if i come back later, you've been warned.