Why some mods don't work now!!
Believe or not, some mods can actually be patched e.g the semi-auto M590 mod and green player mod made by Riceking. When i tried using Riceking's green texture mod, it was green but after 2-4 patches, it became white. I looked into my C:/Nexon/Combat Arms/Game folder to find that these texture rez files had been deleted. However, I then used the original files and it worked fine. I think that if your rez files are significantly older or smaller in size, it gets automatically deleted when you open combat arms.
Are you sure it's not from the unmentionable hack? I just noticed it once I started using it.