Spec ops Signature weapon

It doesn't really make sense what you are trying to do. You made spec ops to be a stealthy infiltrator. But equipping the training path does not change the signature weapon. It makes no sense for someone trained as an infiltrator to use a barret 50.cal sniper rifle standing right next to them. It should be replaced. Maybe give them an advantage when using silencers. Like make all silencers cost 10 less points or something. Or just make carbines the signature for spec ops. I don't know. But sniper for a class that you encourage to go do melee takedowns with is a really weird call. And again, makes zero sense. You don't train with a sniper to be a CQC infiltrator. 

And most importantly it's just not fun to lose a whole perk because the weapon you deem to be a signature weapon is completely incompatible with the class.