The SP4MP2.zip file you have requested: Modifications / Weapons / Single Player Weapons for Multiplayer 2 - 5.28mb is not available. Perhaps try browsing all files for the game Call of Duty 4: Modern Warfare and upload any files you want to share or are missing. This is the only information we could locate:
This mod adds the:- M4A1 Grenadier w/grenade launcher- G36C round reflex site- M4A1 round reflex site- M16203 acog w/grenade launcher- P90 silenced reflex siteE N J O Y! This mod brings some SP weapons into MP. You'll need your Mod Raw files and Mod Toolsinstalled. Follow the enclosed Readme and you should have no problems!