Some strategies that everyone can use.

1. How Imperials appear to respawn where they die on Ilum PVP is that they type /stuck when they are by the medical droid. This doesn't even reduce the durability of your armor so there's no consequence of this action.

2. In voidstar at the part where you have to activate switches to extend the bridges to cross, the switch can be avoided by jumping across the gap after activating sprint. (https://www.youtube.com/watch?v=F5G27IWSJ60&feature=player_embedded)