I was thinking basketball team, but all the same...
Gonna take a while before he has that. Fire team 1st

A fireteam is a small military unit of infantry. It is the smallest unit in the militaries that use it and is the primary unit upon which infantry organization is based in the United States Army, United States Marine Corps, Canadian Forces, Australian Army and British Army. Fireteams generally consist of four or fewer soldiers and are usually grouped by two teams into a squad or section.