not sure if anybody else noticed, but in a post by Jules, they stated that they were outright removing specialized killing (30% dmg buff for silenced guns), and that HVT was taking its place in the skill tree, and Ammo Efficiency becoming a tier 3, and a new skill in the sharpshooter branch for tier 4
tl;dr New skill, changes to skill tree location for H.V.T. and changes to cost for A.E., and no more flat 30% damage buff on suppressed guns
not implemented yet, but this will happen in the future
also i cant find a link to said post