mccree was a founding member of the deadlock gang when they started in 1976, 47 years before he was born, and then was recruited by blackwatch at the age of 17
does blizzard even read their own writing
Here’s the thing: It’s worse than that. The current year within the Overwatch timeline is 2076, meaning that the Deadlock Gang would be celebrating its centennial that year. McCree was born around 2039. 1976 is 63 years before McCree was born. 1976 is 40 years before ANA AMARI and REINHARDT, the oldest characters in the game, were born. The only answer is that Jesse McCree is a timelord or an immortal or has Benjamin Button disease.