vzbiggie You can only use one of a time if theyre replace the same camo.
For now as we still cannot ADD camos and only REPLACE stuff the camos use, if we make alot of different camos and the BASE of all of them is Paladin for example, only one if them can be loaded in game at a time.
The problem of making multiple camos that can be used at once is only one: PROPRIETIES. most dlc camos have unique features that they cannot be replicated (at least still in the modding scene, it may change because theres custom FF loading on pluto now)
Examples:
Basic camos and some DLC like Etching covers only specific gun parts and it haves only basic proprieties of a small level of faking 3D like WaW had;
A Camo like Diamond+DLCs like Kawaii and Graffiti have layers for the main and alternative camo in separate making a very interesting "duo style" with a pattern and a solid+all the above;
Weaponized 115 may have some strange propriety that i wouldnt know what to say about it now but yeah, its a funny one to test stuff on;
Bacon and Paladin covers the whole gun and it have more layers on it that helps to do fake 3D things to the gun+some the above;
Ghosts starts to have multiple layers with one that you can make glow in the dark with the correct way you set up the "light" on it+some the above;
Afterlife and Cyborg have all of the above and are animated with a texture that loops on a movement on the whole surface+all the above.