Members - Claustrophobia: Escape from Black Mesa mod for Half-Life

You can't remember anything, except that you must escape. It's been two years since you started work at the Black-mesa research facility, nothing special ever happened, until now. You are knocked unconsious by after a huge explosion rocks the facility, aliens are appearing out of nowhere and it's your job to escape. Quick note, I am a newbie to mapping and my skills are a bit rubbish, but I feel that I will learn how to master the art of mapping over time. My choice of map editor is JackHammer (Google it)