Plutonium

t bottom left corner of your screen right click your windows icon and select Run then type : %localappdata% then go to plutonium folder then storage then t6 then images (if you dont have images create one) then put your .iwi files in images folder and done

Es muy facil mira aqui te dejo un link de muchos camos de zombis de bo 1 https://forum.plutonium.pw/topic/21640/zm-bo1-custom-camo-mega-pack-1000-camos-for-weapons-maps-skins-more y aqui un tutorial amigo https://www.youtube.com/watch?v=8SbX-RmyPTY&ab_channel=WatchfulWolf esta en ingles pero bueno espero averte ayudado