So I was mucking around in skirmish mode as I do, and I thought that the generic idle sounds used for the MO device were a bit meh, considering how epic and monstrous it is. So I created my own, using the same sound as a base but layering different effects onto it to make a very incredibly spooky sound.
https://www.dropbox.... Sound.wav?dl=0
A possible addition in the future eh?
I don't know how the sounds in RA2 work, so if you need the individual clips then I can provide them