Well that video worked for me, only took about 3 times

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Jon, I read a couple walkthroughs, and you can go left as well.
Quo, I cleared that bunker 20+ times and never got a checkpoint. Maybe the game hates me, or likes to see my reaction getting 1 shot pwned
Cmon Dmiller, back on the horse, follow the video
I'm not even gonna go into: "Get on top of that bunker! and signal the green smoke"
Listen Captain Dickhole you go on top of the bunker, I'm stayin in it!
Thanks for the help guys. Off to the Silo missions, high five.