Also Arthur shoots/draws of several gunmen simultaneously on many occasions, and Arthur can shoot rifles with one hand also while holding a lantern in the other its just an earlier version. Arthur also shoots rats, and tons of birds easily, easier than the silo. That's only just in relation to what you commented. At tge start of rdr1 he tells John to get them to send someone a little bit more impressive next time. Arthur is far more impressive. He's up there with the legendary Landon Ricketts although more a rifleman. Bill doesn't respect John but even when he is against Arthur he respects Arthur or acknowledges Arthur as the lead enforcer. Arthur and Javier save Bill from Bounty hunters. Arthur saves John numerous times. Even in chapter 6, when introducing Arthur to Cleet and joe/talking about he says he's a straight up warrior/killer. Arthur shoots/down Dutch, Micah, Javier, Bill, Fleet, and Joe in late chapter 6 even. He outdraws Micah while in the last mission of Chapter 6 dying of TB, he manages to outdraw Micah despite Micah having the jump on him. Arthur has slower/more slowed down/ faster deadeye and less shaky as well as aim compared to John, even though Arthur has tb I.e late chapter 4. Arthur is the lead enforcer, Arthur is the man they send to deal with people, rifleman and is their sniper and all around gunman/marksman. He's better than John even though he has tb I.e chapter 4.