if you hit customize skin where you see your classes you can edit your player. To see what the requirements are for each camo/color, read the text under each one. hope this helps

Weapon Camouflage: Create A Soldier > Select Soldier > Select Loadout > Navigate right from your weapon, select and choose your camouflage
Soldier Appearance: Create A Soldier > Select Soldier > Press X > From here you can change various aspects of your soldier

The camo for your actual character depends on what team and what map you are playing on. You cannot simply just choose which one you want to wear. The camos for your guns are earned through completing various challenges which can be found in the create-a-class menu.

Alright thanks Excision thats what I was wondering.