There's another improvement to the Half-Life speed run, this time done by 'RandomEngy' though the discovery of some new tricks was a collaborative effort between the previous runners, maybe you saw some of their discussion on the forum. The new run times at 45:45, over 5 minutes faster than the previous one, and it was done in only 21 segments so it is a lot more impressive when you think about that. There is a lot of new shortcuts that'll make you go WHAAAAT, or at least: they made me. It's available in the same 3 versions as previous Half-Life runs, hi-res, normal-res, and .dem files.