There should be an Elimination mode. There are 2 teams and each player in a team has 10 lives. When every player in one team runs out of lives the other team wins.
What about a Scout skill that let's you have double pistols? It will cost 40 GP,100,000 CR and 4 SP. An Assault skill that let's you sprint (we needed that forever) that costs 2 SP. And a Sniper skill that let's you prone (Control) that cost 3 SP.
Idea: Virus,everything it touches will infect that. The Virus can infect dolls too (not a zombie idea) ,the doll will have darker blood,more health and darker head.