The giant fan on blast pit.

Black Mesa Archive Suggestion Box
#241

And then fly away. “I’m getting the hell out of here!”

#242

https://www.youtube.com/watch?v=fqURJ0dw9EY (at 5 : 34 )

Founded in 2004, Leakfree.org became one of the first online communities dedicated to Valve’s Source engine development. It is more famously known for the formation of Black Mesa: Source under the 'Leakfree Modification Team' handle in September 2004.