yes.
Complete gang hideouts.
Kill other players, complete gang hideouts and challenges, etc.
You need to clear all the gang hideouts within 24 hours, I haven't played Red Dead in a while so this might be inaccurate :)
You cannot get a gang in Red Dead Redemption, but you can be part of a gang by accepting a wanted poster, then wear the outfit of the gang, then they won't attack you.
Either buy them from the gunsmiths in most towns (like Armadillo or Blackwater) or you can get them from completing gang hideouts like Pike's Basin. On multiplayer though you have to be a certain lvl to keep the guns you pick up.
Well, you do gang hideouts. If you do them by yourself you get more XP. Pike's Basin hideout gives you almost 2,000 XP if you beat on your own. Hope this helps! ~I like pie
i leveled up fast doing these simple hide outs first:pikes basin second:fort mercer third:tumble weed fourth:gaptooth breach and then when you finish those in that order do them backwards and do not do any small gang hideouts because they totally not worth it and if u do these gang hideouts in the order that i said you will level up FAST i was level 1 then i did those in tht order and i got to legend 2 level 43 in a week or so
3 us gang hide outs
no there is just a gang that usually hangs out there
The requirements to be able to dress as a Marshall are Complete the mission "The last Enemy That Shall Be Destroyed" Clear out all US Gang hideouts within 24 in-game hours. see outfits RDR-14 in related walkthrough link
level up. do that by killing players, complete gang hideouts and complete little missions in your journal
If you don't have it already, you can simply purchase it from the PlayStation store, it allows your fame to increase at twice the rate.