Call of Duty is a 2003 first-person shooter video game developed by Infinity Ward and published by Activision. It became the first game to be published in the Call of Duty franchise. The game simulates infantry and combined arms warfare of World War II using a modified version of the id Tech 3 engine. Much of its theme and gameplay is similar to the Medal of Honor series, however Call of Duty showcases multiple viewpoints staged in the British, Canadian, and Soviet theaters of World War II.
Courtesy By Wikipedia
The player has two primary weapon slots, a handgun slot and can carry up to ten grenades. Weapons may be exchanged with those found on the battlefield dropped by dead soldiers. Unlike later Call of Duty games, the first allows the player to toggle between different firing modes (single shot or automatic fire). Call of Duty was one of the early first-person shooters to feature iron sights in game play; by pressing the corresponding key the player aims down the actual sights on the gun for increased accuracy. In addition to weapons carried by the player, mounted machine guns and other fixed weapon emplacements are controllable by the player.
The American campaign begins with Private Joe Martin, a newly enlisted member of the 506th Parachute Infantry Regiment, completing basic training at Camp Toccoa in Georgia, United States, on August 9, 1942. Afterwards, the action shifts to June 6, 1944, with Martin forced to undertake a solo mission to establish a landing zone for soldiers participating in Operation Overlord.
The first mission of the British campaign has Sergeant Jack Evans and a unit from 2nd Ox and Bucks of the 6th Airborne Division take part in Operation Tonga. Just after midnight on June 6, 1944, the unit is dropped from Horsa gliders alongside the Caen Canal near Pegasus Bridge, Bénouville. Led by Captain Price, Evans and his troops clear the bridge of German soldiers.
The first mission in the Soviet campaign occurs during the Battle of Stalingrad on September 18, 1942. Corporal Alexei Ivanovich Voronin, a young volunteer, and his fellow recruits are sent across the Volga River, many of whom are subsequently killed when the Luftwaffe launch an attack.