How to install mods
Guides are almost always a work of personal opinions and thus results may differ.
Pretext
You can install mods. They mostly add visual changes to the game - mostly used to add Quality of Life at the cost of the overall aesthetics / prettiness of the game. Installing mods is NOT against the Server rules and can be done freely, as all they do is replace game-files (usually images). This includes either particle effects like smokes, or the HUD of the game to make it more pretty.
A repository of common mods can be found here: Mods. Some additional ones may be found on the Discord, the Forums, or even be done by yourselves! Alas, there will be no guide on how to make mods yourselves, simply asking around on Discord should give you plenty of guidance to start working on them! (You can also just unpack the mods that already exist to see how they work.)
Method 1
The first method of installing mods is to just unpack them and mirror the directories of the mod to the games directories. While this is a little bit easier, this is not advised, as this will overwrite the default files of the game, making reverting the changes back to the base a lot more difficult - and in case of an update to the files due to a server's patch changing those exact files, overwrite the mod in question!
TODO: Add images and tutorial
Method 2
Method 2 is preferred, as disabling and enabling mods is very easily done with a config file - and updates to the server will not break the mods. It needs a little bit more set-up, but this is what the guide is for! In addition - if a mod should sit atop of another mod, because one mod changes a lot, another a little but they change mostly the same files, the config will allow you to designate a so-called "load-order".
TODO: Add images and tutorial