So obstacles have their effects when a ship performs a maneuver that causes it or its maneuver template to overlap that obstacle. (RRG, Obstacles)
And obstacles have their effects when a ship overlaps it during the resolution of a Tractor Beam effect (Tractor Beam rules card errata in the FAQ)
So with Collision Detector, we will now have the ability to boost and barrel roll onto and across obstacles. (and decloak, but that didn't really need to be mentioned since it, by rule, boosts or barrel rolls) Previously, only Dash Rendar could do this, and he ignored obstacles during the activation phase, so the potential effects did not matter.
The questions:
- If a ship boosts or barrel rolls onto or through an obstacle, does it suffer the effect of that obstacle? (RAW: no, this is neither a maneuver nor the application of the Tractor Beam exception.) (RAI: who knows but the TIE/sf preview article seems vaguely worried about a barrel-rolling TIE Phantom taking damage.)
- If we determine that ships are affected by obstacles they boost/roll through, what happens to a PTL/EI/Vader pilot who spends their first action moving over an asteroid? Do they lose their ability to take further actions? Can you "nest" the extra action before the "you skip your action" takes place, or does it not matter because you already took your "normal" action.
- Same situation as above, with debris. When does the stress token come in? Does it prevent the various means of taking a second action?
(randomly discovered bonus while researching this: being Tractored across an obstacle -- but not actually landing on it -- will have no effect, according to the Tractor Beam errata)