This is how u fix the 1-50 system. Just make it were u can only team up or play with players near ur skill. Like if u are playing with a 45 in team slayer and ur friend is a lvl 30 in that playlist then a message will pop up saying u can't play with tht player! And it will get rid of most derankers. Everyone is happy. Oh and u can add that *** credit system to unlock things