Mod note: video proof no longer available.

i manually timed the run and got 3:57 with out loading time. the loading time is like 11 seconds long on my ps4 (starts around 3:05 in the video)

lost like 4 seconds hitting the rock at 1:11 , another second at 2:00, another two seconds jumping off d-walker at 2:06, another 3-4 sec shooting the dude at 2:46, maybe another 2-3 before shooting the burning man...mission maybe sub 3:45 or 3:40 possible