I am the director of Tier 3 and a member of the Innovators in Science developers team. I write scripts, design concepts, voice act, and write the storylines. I am decent at designing the atmosphere and appearance of our levels, but not so much actually building them...
This one's going to be nice and short- there is a lot more to this one and it's quite a nice piece, done by Innovator in Science member Van Kinesys.
Here is some of the music of Tier 3. While we won't post ALL of it, we'll give you a good idea of what kind of feel we are hoping to reach withour mod.