vladtrc/iw4L ? reverse-engineered prompt

Build me a Rust game runtime for Call of Duty Modern Warfare 2 that can point at a copy of the game I already own and load its maps, models, textures, and weapons into a new engine.

I want to be able to run around on multiplayer maps, fight bots, and record and replay demos, even if some gameplay is still incomplete at first. It should also support reading the related MW3 and Black Ops assets where possible. Keep it working as a standalone app, with a local match mode and basic online play support later, and make sure it can use my installed game data without patching the original files.

Use the existing docs as a guide, and if you need to check anything current, look up the latest docs online. I’d like it to build cleanly, run on desktop, and include sensible defaults so I can launch it from the repo with a simple command.