McClosky fought alongside Sergeant Randall and Corporal Taylor throughout the American D-Day campaign in Call of Duty 2 and survived.
During the mission "The Silo", Pvt. McCloskey was thought, by Pvt. Braeburn, to have had the spare case of ammo that was later picked up by Pvt. Peas. This is the second time the player witnesses the sour side of McCloskey and Braeburn's friendship, the first instance thirty seconds before the attack.
On "Hill 400", McCloskey and his company fought and survived against what felt like endless waves of enemy troops; fortunately, they survived due to the timely arrival of P-51 Mustangs.
He survived crossing the Rhine River, and soon traveled with his company into Germany.