: %APPDATA%/Local Low/Balloon Moose/Maximum Action/Custom/ File Name : letterlearner.txt
: Inside that folder, include your level file (often ending in _MAsave.txt ).
Weapon Modding Guide - Maximum Action - Steam Community
: Any text you type into this file will be piped into the game. 2. Custom Level Metadata
To "put together a text" for (the hyper-violent physics-based FPS), you are likely referring to the Letter Learner feature or creating custom level metadata.
: If your file is Containment_MAsave.txt , put it in a folder named Containment . 3. Weapon Modding (XML)
If you are putting together text for a weapon mod, the game uses .xml files rather than .txt .