In any group of guys, there will be one that is willing to serve the others. This holds true for hunting buddies, school football teams or military units. Once you determine which one it is, the rest of the men can make use of him.  

That fellow soldier bitch is taking at least thirteen loads of grunt spunk in his ass cunt every night. Cock after cock filling him up.  Men who have been trained to be aggressive and are in the best shape of their lives, get to take out their frustrations by plowing his hole deep and hard.