I ended up downloading and unpacking everything by hand.
For those in similar situations, or simply looking to fill in the gaps of their textures folder, here is (almost) the entirety of this forum's content, uncategorized. If you're new, downloading these zips and the files uploaded after this post should give you everything that's been made thus far.
Due to the file upload size limit, there are a lot of parts.
Edit: Forgot to mention I did not include Battlegrounds or much of Mercenaries as I do not play those modes, my apologies.
Enjoy!