OK, so here was my assessment...

Primary- tourny the arm and leg. (Stop the bleeding)
Clear the mouth (Start the breathing)
Now heres where it gets hinky...

1- Chest is showing Torsion Pneumothorax on right side, coloration and difficulty breathing tells me collapsed lung. So yes, get ready to hit below the 2nd rib down from the clavicle with the angiocath.. then the dude sits up and can breathe fine... So, do you hit him with the needle or let him sit up and breathe? Does it do more harm or good to hit him with the angiocath? Had to make a call, and I was right, let him sit up and breathe on his own versus adding another hole in the guy.
2- Now.. as BWRR said, I would have also gave him a nasal pharyngeal him since he had all the broken teeth and facial damage, which they didnt do. Not my call, but an additional step to ensure airway was open.
3- Treat for shock, send out the 9-line, and wait for the bird.

I was down at Bragg.

Now, the interesting part, this guy survived, with only the loss of his foot. So Helomech, while it looks harsh, its survivable.