Hey there,

I was tracking this mod for long and today the first version was released. It contains better textures, weapon models, some blood effects, new sounds etc. I was testing it right now and it is quite good, so, you may give it a shot too.

http://www.moddb.com/mods/surgical-operation-hd/downloads

:)

Surgical Operation 1.0 was released some time ago, I totally recommend to try it, textures, sounds and weapons are really impressing, definitely give it a shot.

http://www.moddb.com/mods/surgical-operation-hd/news/surgical-operation10-full-version-mega-download-link