Call of Duty 4 Modern Warfare
This is my second skin-pack for CoD4, now. Some are just darker, sharpened, some have new wood textures.
Completely new camouflage skins for all the weapons in CoD4.
Here's a nice new pack of weapon skins by Wilhelm.
Here are some nice new skins for the CoD4 knife, M14, and P90.
Here's a pretty good three-pack of CoD4 weapon skins by Hibana.