CKR sucks total ass (sorry CrowKing).
It's not actually realism. Realism would be two-shot kills for every gun in the game.
If you want to mod gameplay, get NBM (Noctis Balance Mod). It's in beta now, and it's much, much better than CKR.
Hate to blow my own horn here, but it gets rid of a lot of MG whoring and promotes rifles. Who else here is sick of CKR MG whoring?
Thought so.
You can download it at
http://www.movv.com or
http://www.mohadmin.com.