Well, by searching for the word "blood" in the client, I was directed to the "3DEffect.ini" file. By searching that file for "blood", I found that the texture id is "30". In 3Dtexture.ini, I found that texture id 30 is "c3/effect/blood/1.dds". If you can't find it, it's most likely because you never decompressed c3.wdf using one of the guides at the top of the edits section. Also, this question isn't really related to private server development. I suppose the best place for it would be in the discussions section.