The ACR 6.8 has a mediocre rate of fire, only shooting at 705 RPM. Damage is one of the ACR 6.8's strongest suits, as it will usually cause a large amount of flinch per shot, and will cause significant damage at any range with a headshot. It should be noted that the ACR 6.8 is a one shot kill at any range in Hardcore game types. Damage drops linearly in damage until 30 meters, where the ACR 6.8 will deal 30 damage, resulting in a four shot kill, or a three shot kill where one bullet hits the head. At any range prior to 20 meters, the ACR 6.8 will deal 45 damage, resulting in a three shot kill, or a two shot kill if one bullet hits the head, against unarmored opponents. The ACR 6.8 is a relatively high damage per bullet weapon.

Other friendly and enemy NPCs never carry one, and there is no way of receiving extra ammo for the weapon, though it has a high amount of reserve ammunition to compensate for this. The ACR is a rare weapon in the campaign, used by Derek 'Frost' Westbrook only in the mission ' Scorched Earth' equipped with a Hybrid Sight.

Acr call of duty