WW2C is the single most comprehensive WW2 mod pack for Ravenfield, but chances are, you won't always need everything in it. To reduce loading times and streamline your weapon selection, you can manually remove files from your workshop subscription files using the following steps:

1.) Open file explorer
2.) Navigate to the following directory in Program Files:
Steam\steamapps\workshop\content\ 636480 \ 1418651185
3.) Delete all files in the folder except for whatever you plan on using. ex, if you just want weapons for a Japan vs US config, delete everything save for "ww2 american forces", "ww2 american gear", "ww2 japanese forces" and "ww2 japanese gear".

If you want those deleted items back, you can unsubscribe and re-subscribe to WW2C, or verify game files by right clicking on Ravenfield in your library, selecting Properties, then Installed Files, and clicking "Verify integrity of game files".