Okay, I decided that since I have successfully installed XNA Game Studio and Visual C# Express, I would go ahead and make the development thread. Here you may discuss the game, my plans for it, and post your own ideas.
Here's what I've figured out so far.
My game will be played from a top-view perspective. The player will have the option to choose his class, each of which will have a different ability. For instance, the Cop would fire his gun more accurately, the medic would procure more nourishment from food and health packs, and the reporter would be able to open locked doors.
What other classes could I have?
Note that I don't want any supernatural powers or elements int he game other than the zombies.
The gameplay would involve trying to survive for as long as possible in each area. I know I want a suburban neighborhood, a deserted military base, a secret lab, and a highway bridge littered with empty cars.
Any other ideas for levels?
Weapons will be found inttermittently throughout the levels, with the more powerful weapons found in more difficult-to-reach areas. The player would have to find keys and hidden paths to find the hidden weapons. The weapons available would be a pistol, shotgun, uzi, sniper rifle, grenades, a rocket launcher, and a crossbow.
Post some ideas for weapons. Sci-fi weapons are welcome as well.
(I'll only allow the player to carry two weapons at a time)
So, get to posting.