Age of Darkness is a mod set in the historical period spanning the two world wars of the 20th century, revolving around the struggle between the forces of liberty, socialism and reaction.
Tanks and planes aren't the only weapons featured in Age of Darkness: the Goliath, a robot, is also featured as well, as one of Germany's unique units. Although weak and easily taken out by anti-tank guns, the Goliath packs sufficient punch to be able to critically damage buildings and take out unwary squads of infantry, its cost being the only drawback.