Well, LG damages in CPM/QL is 7, but warsow is faster than both games. Hitting 40% LG in warsow is actually FUCKING hard if your opponent got decent dodges, unlike in QL. And the hitboxes are smaller than in CPM, which makes hitscans like MG or LG even more difficult to use.
Also, because of the warsow pace (which is VERY fast sometimes) I added more knockback to basically ALL weapons, not only LG.