@hayhor It's really not. I find it weird, too. The hilarious thing is that I have a way, way higher K/D in arenas (.75 compared to .30 in BR). I still have the 52 win ratio, but the matches are much more evenly distributed. That's one reason I love it so much.
Even when we lose, it's generally 2-4 or 5-7 or 1-3. Getting absolutely stomped is extremely rare. Maybe it's because the matchmaker only needs to look at 2 teams instead of 4 or 20.
This is what I sincerely expected when queueing for Gun Run, but the reality was soooo different. I just ended up getting used to always being the lowest score on every team (but usually not the lowest of the entire lobby). I mean, some of these guys had more total kills than I have total damage. By looking at the scores at the end, though, it seemed like MM was doing that for most teams, with one player doing 2k+ damage and one doing 300 damage. That part wasn't fun, but I still got my 10 wins, so after that I didn't mind being fodder as much, lol.