Battlezone
12 Achievements
200
Xbox 360
Major
Win a game without dying Multiplayer game - Ranked match
25
How to unlock the Major achievement in Battlezone - Definitive Guide
The rocket is an easy way to win, just run into the saucers not the tanks. 10 saucers will get you the points needed to win.
Again, get a boosting partner for these online achievements. You can get all the achievements done in one match if you really want to but it’ll take all day to find a match without a boosting partner.