Didn't matter to them how fast or strong you were. They eventually found your weaknesses and capitalized on them. The day began with a short drive to the pool, where we would spend the next three hours. Push-ups, for instance, are always done facing the water. Instructors assigned a swim buddy to each person and formed platoons.
Buddies are responsible for each other.
You had to know where your buddy was at all times. When your buddy gets punished, you get punished. Platoon leaders are responsible for their team members. Instructors mixed up their commands, moved people around, and complained how unprepared, how unorganized a group we were. It also emphasized the urgency to act and function as a group.