When I did a legendary Combat Evolved solo run, there were one or two speedrunning strats I borrowed. Probably could do the same for H2 - one of the later levels, you can skip entirely if you do it right.
This just reminds me of the mod situation for early versions of Minecraft. These days it’s as simple as pressing a button and dropping your mods into a folder, but back then it was a case of directly modifying the main Java file, removing specific bits, adding specific bits in specific places… not smooth at all
Was there an alarm clock in the first game? There was in TS2, and it’s a bit of a lifesaver (except when they went to sleep dead late and then refused to go to work)