I made mod that makes game and mainly guns more realistic. I've also added new skins and grenades from Back2Fronts mod (many thanks for this), new weapons and maps. I also have to thank Def and xMartineSx for support, help with tests and so on. Works only in Multiplayer. MCh2207Cz allowed me to use his skins. I hope you'll like it!
Muzzleflash shader is made by MCh2207Cz. I just edited this effect to add more smoke and less fire.