Escape Dead Island

I am amazed there is no guide. I simply have a tip.
To easily kill off butchers and screamers; hug the edges and try to make them leap for you, dodge them and they will fall off and die. RB to wak them and that will encourage them to take defensive action. Nobody mentions this, but I spotted it out watching a video on youtube. After I learned to do this, the mission was a cake walk.