I think my win rate is 20-25% (1 win every 4-5 games) makes it really hard to play OPR.
Some players are at the point of getting 500 points and going AFK.
Some players stack 5 man and are very hard to compete against.
Some players only PVE but lose all mats on first encounter.
I think if Match making would balance teams based on win/lose ratio, it would make it much more fun and bring win rate closer to 50%