Model Request/Help

Well first off, I have the Metro 2033 Ranger Models from garrysmod.org downloaded. They are on my server, and now they download (thanks to one of my buddies who wrote a script). I can see them, as can some other people. However, for some people, they are invisible. Is there any explanation or way to fix this? If it helps at all, there’s no icons for anything.

Now for the request. I would like to find somebody that can port or already has Metro 2033 models. I would like to talk over steam, to negotiate a possible price or whatnot. I’m looking for things such as Rangers, Stalkers, Working Mutant NPCs, maybe a few weapons, and some maybe a Hunter model.