Rufus' is a heavy gambler and outlaw in random encounters he can be found being chased by lawmen and him escaping coaches belonging to law men. Rufus can be found at the saloon in Thieves' Landing as well as the one in Armadillo gambling. He takes gambling very seriously and will challenge Marston to a duel if the latter is caught cheating. He also shares afflictions with the Williamson Gang but is often considered unaffiliated as he does not appear at Tumbleweedgang hideout in multiplayer but he does in single player. He also can be found drinking in Tall Trees.
Rufus appears in "The Assault on Fort Mercer" apart of the Williamson Gang inside the fort. He is only seen in the opening scene and for a short time after it. Once he is killed, he no longer spawns again in the mission.
Rufus can also be seen during numerous random encounters, in which he will rob a store or civilian. Marston has the choice of capturing him, killing him, or letting him get away.
If killed in Armadillo, the player will lose honor and gain a bounty as with any civilian, in contrast to Thieves' Landing where killing him at the poker table will not incur a bounty, as the aforementioned town is lawless. However, any nearby unaffiliated criminals will open fire on the player.