I tend to use science fiction spaceship parts these days:

Tank names:
- Hull
- Raiseshields
- Deflectorshield
- Bulkhead
and you can always include material names: Titanhull, Saronitelayer, Mithrilalloys,...

Healer names:
- Repairsystem
- Powercore
- Engineerbay
- Backuppower
- Medicstation
...

DPS names:
- Turret
- Laser
- Phaser
(added in front: Left, Right or Frontal)
- Torpedolauncher
...