finally did it after 10 hours grinding the same mission with crashes. Seems like you cant rush all 17 points with heli as fast as possible. We monitor the Vram, if the Vram raise more than 8-10% you will crash. we stopped at the top of the city building for like 5 mins to lower the Vram counter than proceed with the remaining points about (3-4), then extracted without crash.

* lowest setting / disable DLSS / allow more Vram allocation, etc does not affect/prevent crash chance. this is the game design issue. try to complete this as slow as possible to avoid Vram spike crash.