Call to Arms - Gates of Hell: Ostfront follows the Eastern Front conflict between the USSR and Germany from June 1941 to May 1945. Its historical setting is paired with a broad strategy format: players can choose single-player missions, dynamic campaigns, co-op, PvE or PvP rather than being confined to one kind of battle.
A defining feature is the ability to switch perspectives instantly. Players can view the battlefield from the classic RTS top-down camera, take direct control of one unit, or use third-person views; vehicles also offer first-person gunner views. Dynamic campaigns add army composition, unit research and strategic choices, while PvP and PvE maps include doctrines for selecting specialized units. The game also models equipment changing across early, middle and late stages of the war.
Its design combines large-scale RTS command with close control of individual infantry and vehicles, making perspective and mode choice central to the experience.
