Return of Zombie Ops is a zombie modification for Call of Duty 4, it features content from Black Ops Zombie mode aswell as from Modern Warfare 3 Survival mode and Ghosts Extinction mode. It's set slightly in the future with some weapons from Ghosts, Black Ops series and Modern Warfare series.
Concept for the new character customization in RoZo.
You can select garment and a helmet, much like in MMORPGs, which will take effect on your stats, such as armor, weigth, inventory space and others. You got 4 types of armor to select from (stealth, light, medium, heavy) and ~3 heads per camo. You can equip a winter helmet to a desert body. Sniper helmets will not appear but take effect.
There are 4 types of camo (arctic, desert, forest, urban) plus three riot armors.