Pvt. Ender:
Private Ender joined the 101st Airborne Parachute Infantry in 1942 and went through Basic Training at Camp Toccoa.He is part of a patrol team during the Battle of the Bulge with Sergeant Moody and Corporal Riley. The patrol ended up running into German Panzer's and Panzer-Grenadier's in Bastogne and most of the men were KIA out. He escaped with Moody and Riley. On the way back, he is wounded in the jeep ride to HQ. He makes it back to HQ and is treated for his wounds, but is not seen afterwards. He speaks with a thick Boston accent.
Sources say he was pulled off the line at Bastogne and sent to a U.S. Army Field Hospital and possibly sent home.
Pvt. Koppel:
Koppel was assigned to Fox Company, 2nd Battalion of the 506th around the time of the German breakout in the Ardennes Forest. He, along with the rest of the 506th, were quickly deployed to the region around Bastogne, taking a defensive position northwest of the town on the approach from Foy and Noville. A member of Sergeant Jones' squad during an assault on the crossroads south of Foy, Koppel's team was given the task of flanking a farmhouse just northwest of the American line. After capturing the house, the squad captured a German officer, Koppel conducted an interrogation of the German. He and the squad then secured a barn and protected the wounded soldiers from an assault triggered by the captive officer.
Later that day, Koppel and Denny lead a squad during the Assault on Foy, attacking the town with the rest of 2nd Battalion. Koppel, as well as the rest of his squadmates were killed after taking fire from a Wehrmacht FlaK 88 assault gun crew.

Major Gerald Ingram:
Major Ingram rescued Sgt. James Doyle who later became part of SOE with the help of a group of Dutch Resistance after he saw his bomber go down. Major Ingram operated closely with the French Resistance in 1942. On July 12, 1943, both Doyle and Ingram lead an assault force to destroy a German battery on Sicily. Though most of the squad was killed, Ingram and Doyle escaped in a boat. Ingram was then transferred to France where Doyle is reunited with him a few months later.
Ingram also fights during the Normandy Breakout with members of the French Resistance. He leads a night landing in France along with Sgt. Doyle, and Cpl. Duncan Keith. Major Ingram later fights in an assault on a fuel plant, but is soon lost as his jeep explodes. Later Major Ingram is found again during the mission, "Hostage!" where he is found being held hostage, yet again, in a German-controlled house.
Later in the war, Ingram was captured and held prisoner at the chateau in the Alps. He gets transferred to Dulag IIIA in Strasshof, Austria. Ingram was later on freed from captivity by a squad of American troops.
Sgt. James Doyle:
Sgt. James Doyle joined the R.A.F on September 3, 1939 when the United Kingdom entered the conflict. On the morning of September 2, 1941, Sgt. Doyle joined the S.O.E organization without hesitation after participating in a routine bombing mission as a gunner of dorsal turret. The mission which is where Call of Duty: United Offensive' starts off in the British Campaign. On a routine bombing mission over Dutch soil, towards Rotterdam, the B17 he was in, "A For Andy", was shot down after an intense dogfight with ME-109s and flak fire. He bailed from his plane and lost all of his crew mates. Once he reached the ground, he was stuck upon a tree with German soldiers down patrolling below, he was then rescued by Major Ingram and a band of Dutch Resistance fighters. Doyle impressed Ingram, assisting the band of rebels greatly by destroying their objective, the bridge connecting Antwerp to Amsterdam and escaping from area with Ingram and surviving fighters. Maj. Ingram subsequently recruits Doyle into the S.O.E.
Earning a very high score in the SOE school in Guilford Doyle completes training in time to participate in the Sicilian invasion of July 1943. Doyle, Ingram, and a band of SAS commandos attacked a battery of heavy caliber guns along the Capo Murro di Porco area near Syracuse. The mission went well after the plantation of some C2 charges on the gun and ammo dump, but during the exfiltration, the SAS team that was mounting the Kubelwagen was wiped out by a Panzer. Doyle and Ingram escaped to the nearby town with a German motorcycle with a sidecar. They fought their way to the docks, and got on board a German gunboat. They fought their way through a flotilla of German patrol boats with Maj. Ingram steering the ship and Sgt. Doyle manning the 20mm flak gun above the deck. They defeated the German patrol boats and escaped after witnessing the Battery's destruction from the sea to HMS Ulster Monarch.
During the Normandy Invasion, his group which consisted of SAS ops of Cpl. Keith, Pvt. Wilkins along with Maj.Ingram, are tasked to parachute two jeeps into French countryside to help French Maquis with their hit and run operations. Unfortunately, his plane was shot down by Nazi flak guns during a night drop near the French countryside and he regroups with the French Resistance led by French SAS member named Pierre LaRouche and Cpl. Keith (Pvt. Wilkins was killed by a German soldier and La Roche shot the soldier to save Doyle). He fought his way to find the lost jeeps, disabling manor house acting as makeshift barrack for flak gunners, and disabled the flak emplacement itself with help of Cpl. Keith and French Marquis. He joined up with Maj. Ingram and escaped to safety from pursuing German Panzers and vehicles. Soon after that battle, Sgt. Doyle fights in a German-controlled fuel plant in order to destroy it (to cut off fuel supply to Black Baron aka Richter, King Tiger that posed threat to Polish forces) and lost Major Ingram during exfiltration and midst of confusion. Soon, after arguing and debating with French Resistance members with Cpl. Keith, Doyle and the others rescue Major Ingram and some Maquis prisoners of war who are held hostage, but lost Isabelle DuFontaine, a major member in French Resistance. He served many more subversive operations against Germany with Maj. Ingram and Cpl. Keith until the end of the war.
Pvt. Danny:
Danny was born in 1922 in England and enlisted with the Royal Air Force during the outbreak of World War II. He was assigned to the No. 90 Bomber Squadron in 1941. The No. 90 Squadron, recently reorganized from the No. 17 OTU, was given the task of initiating the use of the American B-17 Flying Fortress in Britain's bomber force.
On September 2, 1941, No. 90 Squadron was tasked with raiding a heavy industrial complex on the outskirts of Rotterdam, Holland. Danny was a machine gunner in Left Waist of the B-17 "A for Andy" from this mission—the bomber which Doyle was also assigned as a dorsal gunner. While initially, during the flight over the English Channel, Danny, along with the rest of the B-17's gunners and a squadron of Supermarine Spitfires—callsign "Bulldog"—defended the bombers. However, once over Holland and without fighter escort, "A for Andy" took significant damage, losing engines 1 and 3, its tail gunner Angus, and its navigator. During the fight, Danny was overwhelmed with the intensity of the Luftwaffe's assault. He was killed by an unknown Messerschmitt BF109, launched across the cabin by the fighter's machine gun fire. At numerous times throughout the rest of the flight, Doyle takes the position of Danny at the left waist gun. Presumably, Danny's body was never found, as the plane spontaneously combusted and incinerated his corpse.