If all you want to do is create an Uber Bind and/or a Rocket Jump Script, this is the config you should use.

1. Download the ZIP
2. Unzip it
3. If your folder structure is starter-config-master/starter-config-master save the inner folder and delete the outer folder
4. Move the remaining starter-config-master folder into your tf/custom folder
5. Navigate into the cfg folder (tf/custom/starter-config-master/cfg) to add your configurations
6. Feel free to rename starter-config-master

1. Navigate into the cfg folder installed above: tf/custom/starter-config-master/cfg

2. Open soldier.cfg

3. Below the line that says exec reset, uncomment the lines (remove the // slashes):

   alias +rocketJump "+jump; +duck; +attack;"
   alias -rocketJump "-jump; -duck; -attack;"
   bind KEY +rocketJump
   

4. Change KEY to be whatever key you want to use for the rocket jump script

5. Open reset.cfg, and reset the KEY to its default command (look here). For example, if you used MOUSE2 (right-click) for the rocket jump script, you should add this:

   bind MOUSE2 +attack2
   

6. Restart TF2

1. Navigate into the cfg folder installed above: tf/custom/starter-config-master/cfg

2. Open medic.cfg

3. Below the line that says exec reset, uncomment the lines (remove the // slashes):

   alias alertUber "say_team UBER POPPED!!!!!"
   alias +alertAndPopUber "+attack2; alertUber;"
   alias -alertAndPopUber "-attack2;"
   bind MOUSE2 +alertAndPopUber
   

4. Open reset.cfg, and reset MOUSE2 to its default command:

   bind MOUSE2 +attack2
   

5. Restart TF2

The autoexec.cfg file is automatically run by TF2 when the game loads. People use this file for FPS configs, and other game configurations that only need to run once when the game loads.

You can only have one autoexec.cfg file. If you already have an FPS config and you're using this config for the class files, my recommendation would be to integrate your FPS config into this config by renaming the other configs' autoexec.cfg files to anything else, and then having this config's autoexec.cfg load the files that you renamed. The game loads this one autoexec.cfg file, and that file in turn loads any others that you need. Here's an example of how I did that with Comanglia's FPS config:

https://github.com/rufio-tf2/comanglia-with-class-config