Steel Soldiers now has a few new forums, read more about it at: New Munitions Forums!
Microsoft MSN, Live, Hotmail, Outlook email users may not be receiving emails. We are working to resolve this issue. Please add support@steelsoldiers.com to your trusted contacts.
Sounds Wounded to me.
Intake valve and down on a cylinder.
But that's a guess, not being there in person. I can't hear videos very well
Maybe someone else will have better news.
Tom