While Salvage is territorial and objective-based like Control, the strategies are very different. Teams are smaller, and you don’t have to stand on the objective to capture it.
Sunbreaker is a great subclass because you’ll have only three enemies (rather than the possible six in some other PvP games) ganging up on you to take you down before your super ends. Once you’ve wiped up all of them, you can take objectives with relative ease. You’ll also drop more orbs for it, which your team needs with the orb shortage that comes with fewer teammates.
Stormcaller has the same advantages. Normally vulnerable to a six-man counter effort, the Stormcaller can clean up and take objectives.