So I installed KCGEORGE’s weapon packs (all of them, actually), as well as the Morrowind bows. However, when I try to use them on my server, all I get is a giant ERROR hovering slightly above my head. I then tried to install one of the weapon packs client-side as well, which solved the problem: sounds, models and textures all worked as intended (mostly).
Which leads me to believe that the addons are not being downloaded properly. This problem just recently surfaced, I installed the DurgzMod as well, which (I think at least) has been working flawlessly.