Huttball:
1. make sure you have pass the huttball on your quickbar.
2. stay and control mid. don't bother with scoring or defending until you get more comfortable with the warzone.
Non-Huttball:
1. at the beginning ask in Ops chat what the plan is. more often then not having a rudimentary plan will win you more games. Listen to your Ops Leader.
2. use the map key to bring up the mini map to check where all your teammates are and their health stats, especially when you respawn after dying.
3. always call for help BEFORE you die. if there's incoming, call it out, 1 west, 2 west, 3 west! Don't be a hero.