SKawesome

Ok so ive never made a mod before. I was just wondering if anyone knows how too mod the blood in GTAVC, or particularily the blood splatters, I dont know if i need any programs or anything too do this, Also Links too a guide on modding would be great (and yes i have searched google extensively with little luck). Im pretty much clueless so any information would be helpful. I'd rlly appreciate it thanks .