I just got really irritated when everyone said they liked it mostly for the crazy original multiple stories converging plot thing, when it had been done so much better prior. Like in Amores Perros.
Like in previous installments: from bathrooms, busses, random office rooms, in a room beyond a classic squasher trap room, you know places that make 100% sense. Like, damn I need bullets for this shotgun, now where could i find some... oh theres a sewer entrance there thank god now I can get some bullets. Or damn I wish I had some acid grenades for the grenade launcher I found inside the chimney... oh wait theres that bathtub in that one room I bet if I drain away the muddy water it will reveal some acid grenades.
PS. these are not actual events in the series but they could be.
Seriously not recommended since it fucks with all of your program settings - if you installed a program with UAC on and turn it off it is likely to need reinstallation and vice versa.