hi_How can I change EVERY font? I'm not sure how to change the chat box, scoreboard, class selection, etc.
You should be able to go into 'resource' and look for .ttf files. Try replacing every one of them with the font you want. Depending on your hud, they may be located in a folder. If there are some that haven't changed, go to resource/clientscheme.res. (and any base files if there are any as well) Ctrl-F for CustomFontFiles. It should have the paths to all the fonts. Either replace all the font files it points to or change their paths to your font.