Actually, Darius planned to create a shooting window for his heavy bolter in case of either plan 1 or 2, although I didn't go into detail.  Darius planned using his powerfist to make himself a top notch snipers window, or in fantasy parlance, an arrow slit.  Wider on the inside to allow a 90 degree angle of fire in all directions, if he did it right, it would provide a single person, (him), superior cover even over the Mutant's little towers... In theory, anyway.<br/><br/>As for taking 15 minutes... I'd bet Darius could lower that some.  His powerfist does 2d10+14 damage with 9 pen...  which is a lot more than a normal power weapon.  I'd bet he could do the job quicker.