Yes it does. They lose their bonus accuracy which would help their dps scale as other squads gain received accuracy bonuses (Which do stick) through vet. The sad fact is that as the game progresses cons will be doing LESS dps overall while also not having a weapon upgrade to crutch on.
Yikes.
Also explains part of the reason that Penals are so garbage. Losing out on 60% bonus accuracy... That seems like a lot.
Actually since no ostheer units(29% on pgrens) and only a select few vet 5 okw elite infantry (strums obers jaegers ~50%) have better RA bonuses than cons, vet 3 cons are actually overperforming right now in the sense they can absorb way too many hits since no one has acc bonuses and only weapon upgrades to help them scale. Units are doing scaled down dps, and once it's fixed everyone will get scaled up pretty evenly since most ostheer and okw units have a 40% acc bonuses like cons (some get cool down bonuses too). The patch will be a nerf for the most part for brits and usf though since they have nothing close to the 40% acc bonuses that the other 3 factions do.
The rate of killing will go up quite significantly once this is patched and losing squads will be even more punishing since vet 0 squads will actually have very little chance against squads with RA bonuses and a 40% acc bonus on top of that.