四軍は敵の領土にメイン侵略力から切り離されています。
Four German troops have been cut off from the main invasion force into Russian territory.
Sacred Duty leaves them only one choice: Forward! Into the heart of the enemy!
-Command four unique units, with unique weapons and attributes!
-Order and upgrade your units, while they fight automatically!
-Keep them supplied with food or they'll never survive!