Building a Call of Duty Zombies-style game based on your logic. Let me set up the project with proper style guidelines and generate assets.The sandbox appears to be down. Let me retry.The sandbox environment is currently down and I cannot write files or execute commands. Please restart the sandbox and re-send your request, and I'll immediately build the zombies survival FPS based on your logic — including:

- A single-file Three.js FPS (importmap 0.182.0) with Playscape SDK
- Round system with exponential zombie scaling (from your `startNextRound`)
- Points economy (150 headshot / 40 body / knife) matching your `handleZombieDamage`
- Power-up drops at 5% (Max Ammo, Insta-Kill, Double Points, Nuke)
- Wall buys, Juggernog perk (250 HP), down mechanic with bleedout
- Generated 3D assets (zombie, M1911, level) + SFX (gunshots, groans) + music

Just let me know once the sandbox is back up.