Orion seems to be using a lot of Half-Life 2 sounds...

I think Vader said it best... http://darthno.ytmnd.com/

Top 5 games that makes me feel cool because none of my friends own it. 1. Half-Life (& all it's expansions) 2. Half-Life 2 3. Max Payne/2 4. DDR:Extreme 2 5. GTA: San Andreas