It is a GSC script preprocessor for modders, for every Call of Duty which are using GSCs. A full description can be found here: moddb.com/tutorials/pregsc...
The first console-only installment in the award-winning Call of Duty series, Call of Duty: Finest Hour takes players to the frontlines of combat to experience the cinematic intensity, chaos of battle and epic moments of WWII. Call of Duty: Finest Hour features all-new combat missions, intense squad-based combat and cinematic special effects - delivering a breathtaking first person action gaming experience.
In the war that changed the world, no one fought alone. Through the chaos of battle, ordinary soldiers fought - and died - alongside one another. In Call of Duty: Finest Hour, experience epic battlefield moments from World War II's most legendary conflicts including the Russian infantry charge at Stalingrad, the British PPA Commando raids in North Africa and the American-led tank charges in Belgium, through the eyes of citizen soldiers and unsung heroes from an alliance of countries who together helped shape the course of modern history.
* Cinematic Intensity Of War: Play through epic battlefield moments that thrust you into the frontlines of World War II's intense battles - with the sights and sounds of war echoing all around you. Take on the Nazi War Machine through 12 authentic combat missions through four countries across the war-torn Eastern, North African and Western Fronts. Missions range from epic battlefield conflicts featuring hundreds of soldiers to coordinated tactical assaults, sabotage, stealth, sniper and vehicle-based combat missions.
* Brothers-In-Arms: Experience the camaraderie of a squad, bound together through the chaos of battle. Through advanced AI, your squad will act like a trained military unit, with authentic military tactics - laying down suppressing fire, providing cover fire and coordinating attacks on enemy positions. Your squad will be comprised of soldiers from a variety of backgrounds, with distinct personalities and roles to play on your missions. As you progress through the game, you'll experience the war from six unique player perspectives and through each character's own personal and patriotic journey.
* Allied Front: For the first time, console players will be able to experience the war from multiple perspectives -through the eyes of American, British and Russian soldiers. Begin your campaign as a raw Russian conscript, thrown into the harrowing battle of Stalingrad; take on the role of a British PPA Commando - sent on daring raids in North Africa; and battle Nazi tank forces throughout Belgium as an American tank commander. Take on enemies with an arsenal of over 30 authentic WWII weapons from the Russian, British, American and German armories including pistols, machine guns, sniper rifles and grenades.
* Online Multiplayer: Go online for Axis versus Allies team-based multiplayer. Choose your side and work together with players from around the world as a team to eliminate enemies and complete mission objectives. Choose from a variety of Team-based objective games or be the last man standing in Team Deathmatch. Call out to allies or enemies with voice support.