This is a demo of Teamplay, a game mode for Garry's Mod, exclusive to the NoXiousNet community. I used to be a regular on the game mode but I've stopped playing for the most part. It's a really fun game mode and I really should get back into it.
In the video I play as a dragoon during a capture the flag match. Unfortunately I forgot the music was looping in the background (I had my headset off when I recorded it).
If you're wondering, the music is from here http://www.newgrounds.com/audio/listen/412184