alright so a weird thing that happened to me is that instead of not being able to get the brass balls achievement it dosn't exist for me.... any ideas about this if i get all of the achievements i still have a total of 1000 but theres not brass balls and another strange thing is that when i look at my games like as in Bio shock 48 out of 51 and then gta 43 out of 55 and so on it says there are 51 achievements for bio shock but then when i go to the specific page for its aachievements it says that there are only 50.

im no expert with the ranking system and i m having a similar problem to you with my friend but we have figured it out and think that because we all have the exact same true skill we are only getting paired with a small range of players hence making it harder to get paired with players that are better ranks then us which means there is less chance that we will get ranked up if we are constantley winning against teams of the same or a lower rank The times that you get ranked up are usually when u beat teams that are higher skill then you.