Thanks, for some reason I was focused on four troops. The real problem for the Americans is the battery simply didn't have enough officers to form enough FO parties. There was only the captain battery commander, 1st lieutenant X/O, and one 1st and one 2d lieutenant as battery officers. Given the X/O was usually the F/O and liaison to the supported battalion, it often meant the most junior lieutenant formed the F/O party, while the BC remained at the CP. Anecdotally, as they gained more experience, batteries and battalions formed additional FP parties as possible, sometimes using senior NCOs, while eventually many infantry commanders picked up the methodology well enough from their liaisons that in emergencies they could sometimes call for fire, but I suspect that was a rarer occurrence than most movies, television shows, and war games would like to believe, In many engagements when the FO/ liaison officer was wounded or killed it sometimes meant disaster.