The three guards, distracted by their game, didn't notice the door open. By the time one of them saw the stun grenade, it was too late. The grenade went off, blinding and disorienting the three guards. They fell onto the floor, confused and in shock. As soon as he heard the grenade go off, David rushed into the room, weapon at the ready. Spotting the guards, he began to engage. They put up no resistance, and were easily taken out by controlled bursts of 9mm fire. The MP5SD was a very quiet weapon, and it likely wouldn't attract any attention from guards outside. As the guards fell, David swept the room, looking for any guards that he could have missed. Seeing that the room was empty, he lowered his weapon. "Room's clear."

Moving into the room, David spared the bodies a passing glance. They were definitely not expecting an attack, and they wore confused expressions on their faces. Pushing away uncomfortable thoughts, he moved on, looking at the rows of terminals and machines. From here, they could probably cut the power. Looking over at Carlotta, he began to speak. "Alright, you know the tech better than me. Go and cut the power, I'll cover you." 

Taking a moment to change to a fresh magazine, he looked over the room once more, noticing another door. Walking over to it, he slowly opened it, taking a peek inside. It seemed that this was where the generators and other equipment was held. Fortunately, nobody was inside, meaning the building was clear. He walked around the control room, making sure nobody came in while Carlotta cut the power. Unclipping his radio, he brought it up to his mouth, and pushed the talk button. "This is Washington. We've secured the power station."