Matchmaking is not even

Has anyone else noticed that when you play matchmaking with any other person besides by going in yourself, that the matchmaking seems very uneven? I play with a friend who isn’t all that good at the game and when we go in to Arena playlists as a 2 person party, we seem to be facing teams of 4 every game! It seems like even in gold/platinum playlists that people who should be onyx or diamond are playing against us. I am not bad at this game and not at any other halo in fact and it seems as if “platinum” is too high for me when I rank higher in FFA, Swat, Arena, and breakout. When will they fix this issue of teams seeming unbalanced, or is that because the ranking system is just messed up. It is getting to the point where I am about to put down the game until something changes! Let me know how you feel about this issue and see if anyone feels my pain!!