Found mine buried on a hard drive last night, must've played it a bit as there are a load of mods from ghostrecon.net on it. So anyway, I loaded it up and activated the WWII total mod 'War of Infamy', the weapons and uniforms are reasonably WWII-ish but the surroundings were modern buildings and vehicles.
Lots of other mods to try from that site.
I can see a whole load being downloaded this afternoon.