I played all the way up to prestige 8 then it was auto ban, no mods all legit I don't know why so late but they ban me everytime now, I'll make a new account, banned after one game and so on
To play legit all you have to do is run PSN Patch and disable CFW before playing. Only cause it's legit doesn't mean you wont get banned, you are still on CFW and that's a reason to get banned.
My friend got banned just for loading up AW, didn't click anything, quit game, started it up again and it said ban. SO always run PSN Patch before especially AW