This is a known bug currently even if you try to use rockets or minigun it will still crash their is no other way to get pass the mission we just have to wait until they patch the optinal storyline mode bugs.
Joined on Sep 07 2020
Posted 5 months ago (edited)
you can pass this mission. When target and shoot with hydra, just go far away from the boat.I think it is the boat explode effect problem
Joined on Mar 19 2019
Posted 5 months ago
Hi there, I posted a guide on how to bypass this mission without crashing on our official discord - It's pinned in the #ug-installation-problems channel. If you're not on our discord, i'll post it here:
1. Do the mission normally until the part where you steal the jet.
2. Get rid of the enemy jets so you won't be interrupted.
3. Land on the green X (make sure you land sideways so your hydra won't roll down the hill and explode) [SEE THE PICTURE I ATTACHED IN YOUR POST] 4. Take position on the ridge and destroy the spy ships in the following sequence from 1 to 4 (use an assault rifle or a sniper only)
5. Once all the spy ships are destroyed, get back into the jet and finish the mission normally.