An idea for weapons and modifactions to current ones.
I had some ideas for a few weapons, and a couple modifications.
Siren Grenade: Does the same damage as a normal grenade, except it also stuns zeds. Maybe give it to the berserker class?
Bloat gun: Shoots bloat vomit, kinda like the flamthrower. Leaves residue on the floor.
Insanity Grenade, or Berserker Genade: When thrown, makes the zeds fight each other for the time that the grenade is active.
Medic Shotgun: Normal shotgun, add medic darts shooter.
Throwing Knives: Need I say more? Def a berserker weapon.
Sharpshooter: Give the xbow an alt fire. Such as an explosive arrow, or a poison arrow.
Fire Bug: Make the fire spread from zed to zed. (I.E. You are kiting a mass of zeds and you have a Mac-10. You shoot a zed and fire spreads from him to the zeds he's around.)
Grenade launchers have the same affect as Fire Bug grenades. The explosion is a big fire ball instead of an explosion.
Demo: Increased grenade radius
General: Give doors a shoot-through-able property. Wooden ones are easy to shoot through, while metal ones decrease the damage greatly.