Is it Possible?...

[RockmanderZ]

Is it possible to create a custom unit sound set? If it's possible then can someoene explain how to do it, I'd be very glad..

 

[Somatic]

You could not make a "new" one, but by editting the current one you can.

Lets take an example.

You want to make a rifleman to have sounds like a Starcraft Marine.

First you go to Sound Editor (F5 I guess)

Click under the tab 'Unit' and look for 'Rifleman' under 'Human'

Now right click the sounds you see
(Example - riflemanready)
and chose "Replace Internal Sound"
slowly edit all the sounds and then set the "Marine" unit's sound to "rifleman"

When you test it in game it should work.