HD 4K Real Blood by Ellie
If you like this release: 
Ported from here.
One thing you’ll notice is that the file size of this one is halved, and no I did not decrease the resolution of the textures, not by one bit. That’s because the other port, which I had been using, had way too many textures left over from L4D2 version that were not being used. It also had duplicate textures, which this version does not have. I also changed some vmts so now all flesh wound textures should display properly (if Insurgency actually uses all of them), reduced the size of the blood decals in game to be around 25% smaller than Shane Dawson’s version, and swapped out one of the textures. All in all, the addons are different.
Note: this difference in size does not affect the resolution, just the size that they appear in game. Still nice and 4K.