This is a copy paste of the Steam guide I made for the FF2 server. You can also view it here. For now, I'll only be including the plugin commands, Boss list and Weapon stats. I'll add the other stuff (like tips) later, since I'm in the middle of making changes to the guide. Expect updates to trickle in very slowly.
This version will have every category divided into spoilers. Once you open a spoiler, you can use CTLR + F to search for key words.
The same rules as in the Steam Guide apply. I...
In general, it is recommended to ensure your game is not corrupted or otherwise damaged by verifying it's cache files. Valve has posted a very helpful guide.
General Team Fortress 2 issues
"Failed to create decoder for MP3" / Out of memory or address space. Texture quality setting may be too high.
There is a bug in TF2 that causes some sound files to not be loaded correctly into the sound cache. The game will attempt to play the sound over and over, starting a new instance of the MP3...