Actually, even G1 Admins, know all the details, the patch isn't finish !
But the ideias are:
1: Friendly fire ON
2: 1 shot, 1 kill in all zombies, exception for Chariot and Crusher
also if a zombie hits you only one time, your dead.
3: can't use flash/m14/claymore, or any pX 6 slot item in-game
tbomb can be used, as it is on 4 slot (and more sales)
4: DE, is finishing the new version of the crusher, Hardcore Mode, will have an new Crusher version (zombie gona have alot more HP), and gona have a new color (torso and Head : red)
5:The rest is still in discusion, this are the ideias on G1 office so far
Changes can happen, there is alot in discussion....