Hey a little advice would be to use cover(R1 on Playstation), Use A revolver in-game, and a repeater(BEST:Springfield,then Henry and Evans Repeaters), play free roam a while and get used to the aiming system which is peculiar if you haven't played GTA in awhile, also if you wanna level-up do gang hideouts(can boost actually, if interested search Red Dead Boosting I created a thread) and play capture the bag. But most of all listen to Hayze, I know I got it on day one and am a lvl 30(not that great but ok, don't wanna sound like a ****) just play a while and it'll all be down to who shoots first skill is not so important in this game but the free roam aspect is where most of the funs at.
If you have PS3 add me, PSN

EYTON121