HD pack

Half-Life Series
#1

is it possible to have just blue shift installed with the hd pack but not hl1 or op4?

#2

Yes…
Just delete the custom models from the HL1 and OP4 folders, and it will load the old models from the pak/gcf file.

#3

I have a strange feeling, as if I have seen a similar thread before . . .

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.