I have been trying to complete this mission forever. I've watched the youtube videos of where you meet the dog at the reservoir/damn. I know where he's supposed to show up.
I've completed all the parachute jumps AND all the Dom missions except this one.
I've even gotten a Gold achievement for the previous mission, which someone said had to be done.
I've also done the "fix" where you save to a new slot, go online and mess around, then switch back to Franklin.
STILL he, or the dog that leads to the mission is NOWHERE to be found.
I'm totally stuck, I'm beginning to give up.