Thank god for checkpoints
At least they don't require you to do this stuff (other than for the achievement) and they have checkpoints.
That was one of the rare yet annoying problems for me about GTA IV. Even if you are literally 15 feet from the end of the mission and die, you have to do it all over again.
True story: GTA IV, mission where Roman is kidnapped and you rescue him, I rescue him, we get in the truck to drive away, i hit an explosive barrel and die. Had to do it all over again.
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