Jblaze101, please use correct grammar and spelling, I can't tell what your saying.
I also think an Online Co-Op system would be nice. Or maybe even an Online Battle System, too (the one with most points wins [kills=points up, deaths=points down [death will cause 1 second regeneration])! Or even an Online Team Battle System, too (with applicable friendly-fire [friendly-fire=points transfer {meaning points given to enemy team}])!!! They can even make a Assault Position Battle, too (no team)!!! Or how about this, Battle Generator Protector (by shooting a zombie, it will not die, but turn around to enemy generator. One who's generator fully charges first wins)!!!
I have the awesome-est ideas, don't I?