Overkill?  There is no such thing as overkill.  There is only "open fire" and "reload."<br/><br/>*chuckles*<br/><br/>Seriously though, there is no single shot mode on a heavy bolter, and considering the level of threat (bad guy behind cover with krak grandes and the drop on his Sentinel), and the possible difficulty of the shot... (behind 12 points of cover, no one else from his squad could even wound the guy... and for Darius, who had only the heavy bolter ready, he had no real options that would be "just enough"<br/><br/>Heck, if it had been Darius himself behind that vent, he'd have only been wounded by that volley of fire, and without being able to really see the mutant, there was no real way to tell how tough he was, or if he had armor or a force field.<br/><br/>Not that I'd argue that getting drenched in mutant radioactive blood might not be a valid way of aging corruption, although I would think that wearing sealed armor seveal inches thick might be some protection... But if Darius gets a corruption point every time he uses to much firepower for the job, he's going to acquire a lot mote than one point just getting to that vault...