Quote Originally Posted by Wolf Kanno View Post
I don't think its likely, chances are you will get one for the fight and get the next after your other battle. But then again, its could be possible. I don't remember the # of kills needed to advance though, otherwise I would test it.
On my latest play through, I just got Barret's grenade blast(or what ever its called) & one battle after got hammerblow so I suppose what Wolf Kanno says is true.