Quick question

the same problem, works until first death and after it weapon return to "factory" version without modules and camo

I remember a tool for MW3 that give you opportunity to add 3d attachment to your weapon, but can't find it to ask author how he did it

And everything possible we just don't know something))

if we can find that damn check it could be possible to get all perks back and minigun

try to find how game call .csv table. Have you decrypted all .ff file? or at least mp.ff and pacht_mp.ff file?