Those are LAVs, Marine light armored vehicles. Much smaller. The Brad is about 30 tons, roughly the mass of a WW II Sherman tank, is fully tracked, has a turret mounted 25mm auto cannon (as does the LAV), plus coaxial 30 cal machinegun, and TOW ATGM launcher. And space in the back for a dismount fire team, 4 or 6 men depending on the model, who have Javelin ATGMs, LMGs, grenade launchers, and small arms.
Bradley Fighting Vehicle