Contains mostly other collections of great scene-making addons; maps, models, tools, fixes, and such that provide material for or help with scene-making. Because of the sheer amount of models and such in each pack, I'd recommend choosing which to use and only using one pack at a time, although I would also recommend the Post - Processing and Other Tools, Bugfixes Etc. pack for any scene. Just a comprehensive place to get all the stuff you could want to make a real scene.

Note: Very few or none of the addons in my collections are made by me, and thus all credit should go to the original uploaders. And my message to anyone who sees their work in my collections is this: Thanks guys for helping make Gmod what it is and for providing so much for the community to work with. You're all awesome.