See face: why do you say that, if the BOSS set in the middle, in small blame on the processing of will be very troublesome, but if you put the BOSS set in one corner inside, such as the upper left, here from a mob BOSS death are not brush to small blame proves that you face is very good, but if a little strange, so here will appear I mentioned above, the achievements and "weak engineering" achievement conflict. Team configuration: ice law nova, LR frost trap, highlighted the harsh talent warriors, elements of SM earth bind totem, if these professional little word, the proposal to give up this achievement, if control with more professional is easy to do the achievement.
