Zeds come in a variety of forms and sizes ranging from the spider-like Crawler to the hulking, smashing Fleshpound. Killing Zeds earn the player Dosh (in-game currency) that only persist a single play session. Dosh can be used to purchase armor, melee weapons, pistols, shotguns, automatic rifles, flame throwers, other weapons that'll allow the player and his or her team to survive. Kills also earn the player experience points toward different Perk skill trees. Perks can grant players special abilities like buffs to damage, reload speed and ammo capacity. Some even allow the user to see cloaked enemies.