Here's an index to all of my tutorials. if you always wanted to create your own TF2 maps, there's nothing stopping you now.
YouTube Channel link: http://youtube.com/ATGLordMelchior
TUTORIAL 1: Getting Source SDK
TUTORIAL 2: Brushing up your World
TUTORIAL 3: Spawning some Playability
TUTORIAL 4: Visualizing and Supplying the Spawn
TUTORIAL 5: Creating a 2D Skybox
TUTORIAL 6: Let there be Light!
I was thinking maybe if I get popular enough, it'll draw more traffic to ATG.
More to come soon. C&C is appreciated.