I'm afraid that's my fault. 

The original TS rules used the dedman sounds for cyborgs as well, but I changed that with the first DeathSound PR that got merged. 
What I didn't consider is that those 22-N sounds are from Firestorm, so if sounds01.mix is not in the content folder (it is in my case, that's why I didn't notice), the sounds are missing. 
I'd prefer to fix this by adding the 3 sounds to bits, though, since normal death screams seem unfitting for cyborgs.