Battlefront's Theatre of War File Repository offers downloads of a Theatre of War "Mega Modpack," to expand the World War II tactical combat simulator. This contains no immediately playable materials, but can be used as a resource for creating mods and missions with the game's editors and battle generator. Here's more on the download, which is broken into four parts: "The TOW ModPack contains over 2.6 Gb of maps, weapon and vehicle models, and buildings which can be used to create countless modifications to the original game. Two instruction manuals covering modding basics (such as how to add new units to the game as well as about model and building conversions) are included as well."