The explosion blew the door off its hinges, sending smoke, flame, and debris shooting out the opening. Inside he heard screams and the sound of gunfire as the terrified men inside panicked. Burned and blinded, they started shooting wildly, each side convinced they'd been betrayed by the other. For a full twenty seconds the echo of gunfire reverberating off the warehouse's metal walls drowned out every other sound.
Then everything went still. Saren aimed his weapon at the door, and was rewarded a few seconds later when two men came charging out, guns blazing. He took the first square in the chest with a short burst from his assault rifle, then ducked behind the tail end of the ATV for cover as the surviving merc returned fire. A quick roll brought Saren to the front of the vehicle, and when he popped up his enemy still had his weapon aimed at the back end, waiting for Saren to reemerge. At point-blank range the rounds from Saren's assault rifle sheared off half of the guy's head.
For good measure, Saren lobbed two more grenades into the open door. Instead of a fiery explosion, these released a noxious cloud when they detonated. He heard more shouts and screams, followed by choking coughs. Three more mercs stumbled out of the shed one by one, each blind and gagging from the poison gas. Not one of them even returned fire as Saren mowed them down.
He waited a few more minutes, letting the deadly fog clear, then sprinted from his position behind the truck to the edge of the door. He poked his head inside for an instant, then ducked back out of the way.
The warehouse was littered with a dozen bodies. Some had been shot, several were burned, and the rest were twisted into horrific contortions from the gas causing their muscles to seize and spasm as they died. Several weapons were scattered about, dropped by their owners in their death throes. The crate they had carried inside on their arrival sat in the middle of the floor, unopened. Aside from that, the warehouse was empty.
Assault rifle in hand, Saren made his way from body to body, slowly working his way from the door toward the back of the warehouse as he checked for signs of life. With the toe of his shoe, he rolled over a charred turian who had fallen near the crate. One half of his face was burned, the carapace crispy and brittle. The flesh beneath it had melted, fusing the eyelids on the left side together. A small moan escaped his lips, and his good eye fluttered open.
"Who...who are you?" he croaked.
"A Spectre," Saren replied, standing over him.
He coughed, spewing up dark phlegm that was mostly a mix of blood and poison.
"You are in violation of interstellar law," Saren recited in a cold, passionless voice. "You are a thief, a smuggler, and a traitor to our species."
The dying man tried to say something, but only coughed again. His breath was labored: the acrid smoke from the incendiary grenades had seared his lungs, damaging them so badly he hadn't been able to breathe in enough of the poison gas to kill him. If he received immediate medical attention there was still a small chance he might survive...but Saren had no intention of taking him to a hospital.
Snapping his assault rifle back into the slot on his thigh, Saren dropped down on one knee and leaned in close to the other turian's flame-ravaged features. "You steal weapons from your own people, and then you sell them to humans?" he demanded in a fierce whisper. "Do you know how many turians I saw die by human hands?"