Infinite History Game: Welcome to Battlefield

A military blogger is pulled into real historical battlefields by a system. In the muddy trenches of World War I, he must survive amidst poison gas and machine gun fire; in the arenas of ancient Rome, he must fight his way through the cheers of thousands; in Jerusalem during the Crusades, the blades of the Templars and Assassins clash under the moonlight; in the Caribbean during the Age of Exploration, endless gold and betrayal lie beneath the black flags of pirates; in the American West, civilization clashes head-on with barbarity amidst the smoke of revolvers… What others see as hopeless situations become historical answers for him. In the trenches of World War I, he leads his entire company out of the meat grinder alive; in ancient Rome, Spartacus invites him to conspire in a rebellion; in Jerusalem, Richard the Lionheart seeks his advice on siege strategies; in the Caribbean, the invincible Armada is reduced to ashes by his fire ships; in the American West, a "gunner faster than death"...