Denied.
There are currently 7 different sound for spree alone (every 5 kills and 13, 18, 21, 27, 33, 37), not including 'revenge', 'headshot', 'rank up' and 'badge' sound effects. It will be annoying if we add too many sounds effects when player kills.
If you meant to replace current sound based on ranks:
There are 40 different ranks in server and that means adding more than 40 new sounds only for spree alone ? I just dont think it's necessary..