That sounds possible. using some HUD’s and .wav files you can write a "destroy" script for a certain character in your game. So that when they die the HUD is shown for a few seconds while the sound plays.
For example:
;Artificial Intelligence Script
;Header
desc = Monster kill when dead!
;Triggers
:state=0:hudreset,hudx=50,hudy=50,hudimagefine=gamecoretextMONSTERKILL.tga,hudname=Monsterkill,hudhide=1,hudmake=display,timerstart,state=1
:state=1,timergreater=1500:hudshow=Monsterkill,hudfadeout=Monsterkill,sound=$0,state=2
:state=2,timergreater=3500:destroy
But this is just an example script, you couldn't count your kills so you'd have to choose which characters would do this upon their death...
Nue B. or not Nue B. That is the question.