Hitboxes don't determine if a game is competitive or not. He had the same chance as you to land his shots but didn't. Also there is a slight delay in when the damage and bullet appear to when you pull the trigger, so that may account for some of your points. Now, I don't believe that a slightly enlarged hitbox (at that distance) really impacts the "competitiveness" of the PvP. You have to factor abilities, weapon types, etc. this also does not make PvP bad, so much as different. The entirety of it's PvP does not need to be perfect to be good, it just must be good enough. Maybe for you this is a huge problem, but for most of us your "revelation" has not compelled is to quit PvP.