Camillo CoD2 Sound Volume Mod

it's likely to work perfectly fine. The purpose of this mod is to balance the sounds in the game more realistically; for example, voices, footsteps, and other related noises will be softer and sometimes drowned out by the loudness of the firearms and explosions. Anyway, it should increase the intensity of your game that much more, so hey, download it now, and give it a go! ;)
Here's a simple mod by Camillo that goes quite well with his realism mod for CoD2 single-player. This one is also meant for single-player, and although it hasn't been tested in multi-player yet,