>>149932498
He's a genius programmer, maybe even a hacker, those kinds of people aren't known for being badass marksman warriors. Kinger has been in the game the longest, that means he has the most experience playing Caine's games, that's probably why he was so good with guns. He also got an A when it came to the radio, I doubt he's done that sort of thing IRL, he's just got a lot of experience in doing almost everything because of the Caine scenarios.
But it is interesting to think of Kinger as some sort of Watchdogs 2 hacker hero. If he was involved with some dangerous and illegal sci-fi shit like the digital circus, maybe it would make sense for him to know guns.