This achievement is really simple. All you have to do is play through a game of Conquest Domination and win, really easy. This is a pretty fun game mode. If your having trouble getting this achievement, you could always search for a server that does not have a lot of players on it. I found Operation 925 the easiest to play on. Hopefully, the admins aren't kick happy, and you will have an easier time winning the game. Good Luck!