You do not need an animation.cfg file to merge with the _humanoid.gla, just follow the video to the end. The CFG file is just a simple text file that tells the game what animation to play, when, how fast and for how long. Try opening up the different animation.cfg files in the game with notepad to get a good idea, you can make and edit these files in notepad, just change the settings during saving to all file types and add the .cfg extension to the end of the name. I may have to redo that video since I didn't realize until after I uploaded it you couldn't see me testing the animation out in game. Rate the video and let others know if you were able to follow it well or not, it was the first video tutorial I made so I'm hoping it was able to help people out.