Now I've only played a little of Brothers in Arms, but I know for sure that the experience was pretty intense. One might attribute that to the gameplay, but I believe a lot of that intensity goes to the sounds, and man, those are some great ones.
Brothers in Arms: Sound Mod
Sounds from Brothers in Arms, for use in Call of Duty 2. I couldn't get the Luger sound, so I used the one by Lt. Speirs.
Put the z_biasm.iwd file in your CoD2/main folder.
Delete the z_biasm.
Thanks to Zeke for helping me figure out why the mod wouldn't work, Lt. Speirs for letting me use his Luger sound, and to Onex|Snowman, who created the initial BiA soundmod for CoD 1 and UO.