Wanna earn XP in Private Matches? This is simple, you need yourself and a buddy, depending on which one of you will be doing what, will depend on who has the best connection.

Step One
Whoever has the worst connection hosts a private match and invites the other.

Step Two
Start a game, preferably Ground War. Once in the Ground War lobby back out. If you get into a game you must start over as you have to be in the lobby and back out.

Step Three
Go into a private match and set it up how you would like it, then start the game.

Step Four
The host now in the game needs to go to their friends list and join a session in progress.

Step Five
Now since you are gone it makes the person left over the host, in which you simply just rejoin the session in progress. This is why the person with the worst connection is host first, because you leave and the other person gets host no matter what.