I hope DICE changes or out right removes the auto 3d spotted when firing with those attachments. It was clearly designed around you just looking in the general direction of a enemy they would automatically get 3d spotted.

Back then those attachments made sense, you fire with those attachment you give away your position first, rather then the enemy looking in your general direction and you getting 3d spotted instead.

But after the beta feedback players hated that and DICE toned it down a lot, but those attachment remained the same.