Originally Posted by HeyHeyAces
The horn (RT) will stun him for a second. Back him up against the wall. Use RT, hit him twice, use RT, hit him twice, etc. He'll get a few shots in at you, but if you're blowing the horn at the time you won't get hurt.
i was actually getting so stressed haha attrying to do this and yeah this method worked first time. I think that this needs to be put somewherem, looks like quite a few a getting stuck on this one guy...