Mornnius

Hey Just started mm tonight with zombies. I have 2 now and was just wondering how exactly do I "upgrade" them? :P

** don't kill me I'm a newbie ** or do they upgrade automaticly?

I got a power to do with upgrading not sure if it worked?

Hey, when playing pvp even when I'm on hide I can be seen... any ideas on how to get around heros because as a stalker it don't take much for them to kill me.

I use claws and ninjitsu (or however its spelled) and tbh I dont see any difference in play whenI use my ninjitsu powers :/