Preferred weapon?

Well if you mean in general like all of the call of dutys I would say that my favorite weapon was the ACR in MW2/MW3 days, that thing literally had no recoil and an insane damage, if you mean in Cold War I actually dont have a favorite weapon cause all of them are to some extent broken I mean most of the weapons with the right attachment have virtually no recoil, i have just been using them all cause im grinding for Diamond in all of them, but I would say the best one I used so far was the AUG pre-patch.