Whoa.... Black Mesa, speed up!

Almost certainly not.

Aren’t most mods of HL2, that take place within the HL universe at least, fan-fiction? Including very well done ones, such is Minerva?

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.