Games ideas:

Ancient warfare (Greeks, Romans, Gauls)

Medieval times (Infantry, Knights and cavalry)

American Revolution

Napolianic

British warfare history

American Civil war battles

Cowboys and Indians

World War I

World War II

British and Americans in Europe vs. Germany

(All land battles)

Midway (all navy battles)

Marvel Super Heroes

Star Wars (any scene)

Rebel vs. Empire star fleets

Rebel base under attack

Mech Wars

Mech vs. Mech

Mech vs. Humans