The Vet 3 buff for rifles is totally fine. The problem is that some units dont vet up as fast with OKW. Otherwise its fine, people are taking it out of proportion.
So, why not just nerf rifles a bit. Instead of buffing Volks, Grens, Pzgrens, Obers, JLI and so on?
Both Rifles and IS are a tad OP. Volks need small AI buff, but both IS and Rifles neet Vet nerfs for Ostheers sake.