Same here, very annoying... as if I haven't already reverted this mission often enough.
The missione where you have to ambush and steal the truck and as soon as you have the truck at the hideout the chopper appears. So far so good but then the autosave comes while the chopper is starting to shoot and you will die right after autosave.
Make the autosave when you reach the base or something like that...would be better.