Try this out if you want to add blood to COD2. :DCode:12KB presents:
Call of Duty 2 *Blood Patch* (c) 12kb
Oh baby oh baby heres a blood patch for call of duty 2.. now u can
see blood while hitting someone with bullets and see it on the
floor!
Enjoy, makes the game seem even more realistic ;)
Just extract this rar into Call of Duty 2/main
Your friends at 12kb.