nah. 4 man kch is an assault weapon, which fits terror. Scopes is for defensive because the bonuses are used best when sitting still and efending.
although scopes bonus lies in another LOS bonus since range on volks and grens still do no damage that far away. it really only helps shrecks which have a 30% hit or something smaller at max so they can shoot shermans and stuff. maybe throw in a non-combat modifier. like they build their defenses 2x as fast. adds some defensive flavour.
As for 4 man KCH -> higher vet retentions - faster vet gain (4/3 the speed since 1 extra man) stays in combat longer, cheaper than just kch. quite a big and good kch buff.