2 Scenarios,

1. You have pilot skill higher than Dengar

2. You have lower skill than Dengar.

SOOOO, for the first one, if say i have Kylo crew and is able to put on the Blinded Pilot crit. My Vader PS 11 is able to hit him and is in his arc. NOW, his return fire wouldn't happen. But his regular shot would. BUT say if Vader is not in his arc but still hits him. then his regular shot would be the one that wouldn't happen. right. Because it's the next attack that would be stopped and Dengar can't chose.

The second scenario would be just his return on because I would need to get the crit off first.

Correct. He clears blind with his ability but only when he's shot from in his arc to trigger it.

Yeah. So if you can, apply blinded pilot from outside his arc. And then don't shoot him from inside his arc for the rest of the turn.