Hey Everyone, quick question.

If IG-88C has Collision Detector and boosts onto a rock or debris does it still receive the free evade action?

Yes.

Being on a rock doesn't stop you performing actions, crossing or landing on one with a manoeuvre makes you skip your Perform Action step, which isn't relevant in this case for several reasons - the fact that you're already in your perform action step (or skipping it due to using Advanced Sensors anyway) being probably the most important...

I'm more concerned about the stress from Debris... do you get the stress before the free evade action or after?