Quick recap of the McHanzo lines I’ve seen confirmed by many folks! I will try to confirm these myself once my PS4 finishes updating, but so far we have three scenarios (that I know of):
Hanzo asks, “Getting tired, gunslinger?” to which McCree replies, “Not by a long shot.”
McCree asks Hanzo “how his home was like,” to which Hanzo replies that it is a village high up on a hill with cherry blossoms that bloom every spring, and that he misses it dearly.
McCree asks for a drink of Hanzo’s flask since this (the brawl) is “thirsty work,” to which Hanzo replies that McCree has to wait until their job/the mission is over.
"Connecting with people is more important than outshining them."