Doesnt look to hard for the first boss, just avoid the rocks. Although these guys are in premades, so maybe with non raider characters it might be harder. Oh and fastforward until you get to boss unless you like watching someone jump over and over again. (He said he was nervous.)

http://www.youtube.com/watch?v=IgxksxdLKv8

P.S. the song if f'ing hilarious. Great remix, haha.