Remix: Field of Command

Build a small, playable browser game inspired by "Field of Command" (Strategy).
Concept: The invasion that never was. Command the desperate British defense or spearhead the German assualt across the fields of kent in 1940s England, in this RTS that rewrites history.
Tone/hook (from the game's own page): A World War II RTS built around scale, progression and historical accuracy. Dynamic battlefields, orders through your officers, and a persistent campaign shaped by your decisions.
Tech: use Three.js; keep it to a single page that loads instantly with no login or install.
Controls: touch controls (tap/drag) that work on a phone plus keyboard and mouse on desktop, shown on a short how-to-play screen.
Multiplayer: the original is listed as multiplayer. Start with a local or bot opponent, then add online play (e.g. WebSockets) once the core loop is fun.
Steps: 1) get the core mechanic playable with placeholder shapes, 2) add win/lose conditions and restart, 3) polish feel, visuals and sound, 4) add your own twist (setting, character or one new rule).
Make it your own: don't copy the original's name, art, text or code.