Arthur can be found patrolling Blackwater. However, if Marston has a bounty, Arthur will track him to multiple locations around West Elizabeth.
Can’t you walk straight?
—Arthur Shodlow when bumped.
You’re headed for the kind of trouble that’s going to follow you around for a long time.
—Arthur Shodlow when insulted.
Good to see ya.
—Arthur Shodlow greeting others.
I always make extra rounds to stores that give me discounts.
—Arthur Shodlow conversing with others.
Really? Tell me more.
—Arthur Shodlow responding to a conversation.
Judging by some of his conversational dialogue with fellow lawmen, where he refers disparagingly to federal law enforcement calling City Hall and acting like they were "big men", he is yet another character who has a degree of frustration in how the federal government is managing the West's affairs.
According to his dialogue, when in a shootout, he considers himself a crack-shot.
Also going by his shootout dialogue, he considers his colleagues incompetent, as he will bemoan how, were it not for his fellow officers, the suspect would already be down.
He can be heard saying that he makes more rounds to shops where he receives discounts.