marciosmg on 19 July 2009
Yeah, this one is hard. I got it by accident. I was doing the mission wjere you have to destroy the black tar system in the water tower.
In this mission, there are a lot of guys on rooftops, so I kept doing shockwave. I guess one must have thrown a grenade, cause suddenly the stunt unlocked message appeared.
I heard that in Alden's Tower, on the top, there are guys that always throw grenades. So, try there.
