DEF JAM ICON

*** NOTE: This achievement is no longer attainable as the servers have been shut down. ***

I found it fastest to just play the Executive Suite map and take turns throwing each other down the elevator shaft. Just break the elevator door, and every time the bass hits, the doors will open. Once you get the timing down, this goes very quickly.

My suggestion is to enter a lobby (a "Hood Hangout") with a friend, invite your friend to a ranked match on Executive Suite, and then rematch after each match. It will take ~6 hours to boost all 400 matches (200 wins each) for the Ornery Bastard achievement using this method.

Pretty simple but very time consuming. Have a friend meet you in the same lobby. Now just have your friend quit 200 times or you can just take turns to be fair. You don't have to even play 1 match. ***HOWEVER*** If you still need the win streaks achievememt, you can use this same method but YOU MUST PLAY AND FINISH THE 15TH MATCH.

This is somewhat time consuming but can be made a lot faster.
First of all you want to get a boosting partner and set up a Ranked match on the Executive Suit. Then tell your partner to move over to the elevator shaft but stand on the RIGHT side of the door. You now go over beside him and then spin the right analogue stick to do a directional attack to break the doors. This is when you need to look out for the sparks on the floor number meter thing above you. Once it starts to spark press up on the right analogue stick to grapple, once the doors open very quickly press up again.

Once the game is over and you received your win, just press Rematch and start over. This method takes around 45 seconds to 1 minute if done correctly.