On Thats Abominable quest where you use your fleshbag to blow up guys its quite easy once you get the hang of it. Biggest reason your not getting quest credit is you are out of range when you blow him up. Charging to the back of the mobs and detonating wont work well. What I do is stand near the Left or far right of the area and back a good pace or two. Summon the guy, put him on passive and target a guy on the frount line near the center of the encampment. Hit the attack button and he goes charging off. I then target a guy on the line thats right in frount of me, and move up to where I can cast on them (30yards). Once the fleshbag gets to his first target I hit the knockdown fart thing and press the attack button on the guy in frount of me, fart a few more times and he will usaly pull about 12-18 mobs as he charges through the frount lines. As soon as he gets to the new target, I wait about 2 seconds to let stragglers catch up and boom. Corpse parts go flying. Takes me 4 tries most of the time to get 15 of each kill. The last one more often than not is just to get like 2-3 of one type of mob im missing. Ive only managed about twice to get it all in 3 explosions.