Installation and configuration of most common tools for modding.
This video covers the creation and modding of text strings. Generals holds all text strings in a '.csf' file. Some may be baked in to images, but the majority are in this file. The CSF requires a specific program to edit, however the CSF can be converted to an STR which can be modded with any text editor. We'll mostly concentrate on STR files as they're easier to work with.
The CSF/STR file must contain all text strings in the game, not simply the ones we want to mod or add. The CSF editor program, required for CSF and STR files, actually cuts off a few strings. It's unfortunate but the only tool available.
EDIT: 'Was' the only tool available. I wrote my own to decompile csf to str: MODDB link