What's the process of making a mw3 camo? Can't seem to find any guides for it online.

[Xvailer]

Do I have to learn UV mapping in blender to get it to work properly? I looked at mw2 existing claymores and the template is the same as MW3, but I just cannot find any guides on how to do it. I managed to get it worked the first time, but the second time I booted into my game pic here : https://imgur.com/GMesJfc.jpg

for some reason it started doing this https://i.imgur.com/RNN87AE.png the second time I booted into my game. and it only shows the claymore when I sprint, when i hold it normally it does that weird glitchy look.

Any guides on how to do it properly anywhere for mw2 or mw3?