How do you Detonate the Drone?
Apologies if this has already been covered. I'm in the Flying Low Pt. 2 mission, trying to destroy the big rig. I don't have a manual for the game. I figured out how to launch the drone vehicle by pressing down on the Right Thumbstick. How do you detonate the damn thing, though? I've pressed every button and can't seem to set it off, and redoing the mission over and over again is getting tedious. Thanks!