>>21077151
US Marines:
I know it is extremely difficult to carry a wounded person, but ever consider carrying someone back to back? That is the strongest position, anatomy wise, taking into consideration the wound. Walking forward is always the best option instead of dragging due to the head always using gravity and momentum to walk.
Another technique is to put your shoulder under their arm pits and use that hand as leverage while the other arm drapes around to carry the other. Try it, you will incredible results in because you are using your structure to do most of the work. Hope that helps. Godspeed warriors.