ACSAPA
Member
I don't remember what the mission is called or how far it is into the game, but the one I found the most frustrating it one where you end up chasing someone who is in a boat and I believe you're riding a dirt bike alongside on the beach. At one point you have to jump off this ramp and land in a helicopter that Jacob and Roman are operating. I remember dying and crashing. A lot!
That is exactly the one I was about to say. Though, I don't remember what it was called, I believe it was one of the last missions. It's also the same for me that I suffered many deaths during that mission.