The M16A2 is the standard assault rifle used by the United States Marine Corps in Battlefield 2. Two variants are used, one with an underslung M203 in use by the Assault, and one with no M203 used by the Medic. Its damage is low compared to its counterparts, the AK47 and AK101: It requires a minimum of four rounds to kill, and may take upwards of six rounds depending on round placement. However, it has a higher rate of fire and significantly lower spread values. It is the only default assault rifle which fires in three-round-burst, which limits its effective damage output despite its higher rate of fire.