This is from a detailed 82nd Airborne briefing that involved weighing soldiers wearing their basic loads:
Force cap has reduced the size of the infantry platoon. The overall weight carried by the individual would be lower, but due to being force capped most rifle squads are running at 7 men. Machinegun teams are either 2 or 3 men. This leaves most platoons around 28 personal instead of the 40 they would usually have.
Thomas E. Ricks covered the U.S. military for the Washington Post from 2000 through 2008. He can be reached at email@example.com.