I'm currently testing Half life 2 Episode 2, and so far so good, everything is working fine! These mods can be used with the Update version of Half life 2, normal Half life 2, Episode 1 and in Synergy! If you don't see a 'Custom' folder inside the hl2 folder, just create a folder and name it Custom. Steam\steamapps\common\Half-life 2 Update\hl2 If you have never installed mods, the Custom file is located inside the hl2 folder. If you've installed other mods, i'm sure you know where it is. To install these mods, Copy or Cut the VPK files ONLY into your Custom folder! Notice that the Airboat & Buggy mod is not recommended for Synergy. One is to give a wig to Dr Kleiner, another one paints the pistol black and the Magnum gold, and there's also one with upscaled textures for the Airboat and the Buggy. The mod once unzipped is around 800mb + a few bonus mods i made that you might want to use or not. You'll notice greater detail, especially when looking right at the textures up close. A few are upscaled originals, but most are completely new. There are approximately (i lost count) 140 textures in this pack. This is a HD 2k & 4k Texture pack for Half-Life 2, Half-Life 2 Update, Episode 1& 2 and Synergy.
