Call of Duty United Offensive
CODUO Spectator Music (v1.2)
game: Call Of Duty-UO name: Spectator music author: 13|Bullyson website: http://www.13clan.com email: email@example.com x-fire: bullyson version: 1.2 what it does: When clients select spectate, music goes on.... when client enters
Here's a great server/client mod that plays music for spectating players. Nice music, too!