This is a test map for testing the vertex manipulation, the clip editor, the trigger and other stuff.
This is a really short map, it's a test map after all.
Also i know the map has some stretched textures i might fix them but i don't know, I am too lazy to fix textures.
As for the texture stretching, either you're mapping with UV lock enabled or your using the "Fit" button all the time. Both of these are best avoided.