ptklopes

first of all like to apologize for being posting this but could not find anything because there are many threads. then is the following: I am having trouble doing a mission where I enter the helicopter, I am led to the insertion point, the helicopter back to base without me, lands and stops the engine (for fuel economy) and then back to the extraction. But , when he returns to the base I can not make it back to the extraction point with a trigger, the engines do not turn on. has some way?? what am I doing wrong?? P.S. sorry for the bad english :o