Unit sound help!

I am making a custom race in place of night elves (changing units/buildings/stats/etc) I have just completed changing the units and tested them out. most of them when they attack dont have an attacking sound just silence. I think it has something to do with changing the ranged units to melee units. For instance I changed archers to melee trolls. I changed the unit sound, attack, everything. The units work fine. Just there is no sound when they attack. Anyone know how to fix this? Thanks!

You can't change it using normal ways like the unit editor.

so im stuck with the units having no attacking sound?

Well, the question I ask is why you decided to turn an archer into a troll... you should have tried to pick a better unit. Try using another Melee unit, such as a footman, and seeing if that works.