They Never Explained it....!

Wussup reps,

i was playing the game for the like 100th time (!) and i noticed that they never explain why Sadik didnt just shoot marcus.... anyone know????

Hm, him being a demolition expert, probably he wanted to make some mess around and destroy the grav lab equipment. Also kill Eisenduller's dogs. He wanted to kill Moraji in the same style. Perhaps he is enjoying to kill unhappy sods in this style.
McCoy was curious too, about why Sadik just didn't shoot Eisenduller.
Reps have strange tendencies, they like to enjoy the process of slow play with their victims, as we have seen in the movie and Batty's play with Deckard.

My opinion. Sadik didn't like fat people. I think he says something about Mr E being a fat pig or something... So blowing him up makes more of a statement. We also know that he's a bit of an extremist - He wanted to blow up the whole of DNA row,but Clovis said no. (their conversation on the Bradbury roof)