Код:
native EnableDefaultDamageModel(); //under OnGameModeInit
Basically it would enable damage model as it is used in SP. That means original weapon damage values depending on weapon skill (for example M4 should be 30.0, and not 10.0 like it is in SA:MP). That also means default damage reaction animations (if you are shoot with deagle you fall on floor, etc) not the same animation for everything.