1) Try and keep alive on both sides of the map. Very important.
2) Grab the bonuses asap
3) Try and eliminate your opponents from one side of the map.
4) Don't rely on the NUKES. They are hard to conquer and only used when there are 2 players left and you each have a side.
5) You can not move players from one side to the other, so if you're eliminated from one side, that's it, you'll never get back.