i tried to pinpoint a few chapters in the Black Mesa map by David Razi (sorry if it's hard to make out, i made it in scratch lol)

I made this post just for the quest

accomplishing my original mission

Half-Life: Opposing Force - Friendly Fire (CH5) - airstrike

how to skip the entirety of Power Up (chapter 7) in Half-Life 1

saving a scientist by literally stopping time

Half-Life: Opposing Force - Crush Depth (CH7) - Cleansuit Scientist

انهو القزم half life edition

Half-Life: Opposing Force - We Are Not Alone (CH6) - Moment Of Xen