So you wanna reach L50 on ranked matches and get that achievement out of the way? Set up a private invite with a friend and make a ranked team elimination or elimination match game.

Meet up in the specified session and start the match with two people. Now go around the level takeing over data pods without killing each other. Shuttling back and forth stealing data pods gives you points (since having them taken from you doesn't cost you anything, unlike dying).

If you do this at level 1, you're likely to gain around 15 levels in a game set for 10,000 points.