You can find it other places, but this should do for now...
The mod is called SMOD, it was made by some Japanese people, and it is really awesome!! It adds gibs, more tweakable ragdoll physics, FEAR style bullet time, that actually works, great! It also adds a TON of really cool weapons, and adds iornsites too all weapons exept for the AT4. A MUST PLAY!!! Seriously, you will thank me when you play it.