Alliedassault - Server-sided localization.txt pk3 mod?

Our clan is running a dedicated server, and would like to have a server-sided mod for our localization.txt. We already have a client-sided localization mod (pk3), which works fine, but would like to either transform this mod somehow, or create a new one that we can place on our server, so anyone playing on the server will see the messages.

We have tried localization.txt file substitution in pak.pk3's 2 and 5 with no luck. The text stays stock. Our server admin has tried as well, also with no luck. Is it possible to make the localization.txt into a server-sided mod?

Any ideas?

Thx..

~J