To be able to use it - download and install Mod Tools v2.0 by Frankelstner and Rukqoa, from: viewtopic.php?f=33&t=1420
Client Side Mod.
Add Soldiers folder to your master mod level.
Example:
Battlefield Bad Company 2\Package\levels\mp0_common
(Can be used with "BBC2 NAM Client Mod" v0.6 viewtopic.php?f=33&t=9283
and "BBC2 Client Mod Pack v1"https://forums.veniceunleashed.net/viewtopic.php?f=33&t=9271)
After you add folder Archive your level. End
In this way you also can add own mods - very simple
Link for download in description: