If "staying alive" is your only metric to attempt getting a good score. You are doing it wrong.
While there is some contradiction between score and playing/dieing for the team objective, the bigger contradiction is between team objective and what would be the normal ideal behavior.
Examples.
Bomb and bailers. If empty bombers bail when an interceptor is getting near, the interceptor is doing something wrong. That is, getting near empty bombers at all. When bombers are empty, the correct strategy is to stay away. Don't shoot them, don't scare them, hope they RTB. RTBing cost them 30% of their flying time. Time they would spend getting more bombs after being shot or bailing.
From the other point of view, the correct behavior of course is not to wait for an interceptor to get near, but to bail right after drop.
Generally, spending time to shoot anything that tries to RTB is a bad idea. Equally stupid as RTBing itself.
Shooting something that is trying to defend somewhere away from the field. Do not waste time to hunt it down. Because when shot, it respawns at the target.
Dropping bombs on GVs at the spawn. Let them drive first. Drop bombs when they are reaching their destination. It takes them a lot more time per bomb needed to kill them.
Killing damaged GVs in tactically inferior locations. Leave them alive, if they respawn they'll be fully operational and close to their map room.
The only thing that is limited is player time. To win the game ensure that the enemy is not using their time efficiently. It is a very strange way to play the game, but the proper one to play the team objective.