Uriah holstered his bolter, conserving the large gun's ammunition for bigger opponents. As of now, he waded into the entryway passed Ferreus, having followed him through the arch. Civilian workers were mixed with enemy soldiers and unarmed vehicles in a ubiquitous mix. He was not about to be known as one who killed civilians, but there was a job here to perform, and he would do so to the best of his abilities. 

His plasma Pistol in his right hand, he wielded his Gladius in his left. The Ultramarine moved tactically, somehow remaining behind crates and vehicles more often than not, eviscerating and gunning troopers down with nearly every movement. Lasgun rounds singed his armor every few moments. They were mere glancing shots, and the Astartes kept moving. That is, until the Turrets suddenly came online. He gutted another soldier with a back handed thrust, before glancing up and noticed the danger that approached. "Brothers! Get down! Turrets at the center!" 

With long strides and speed that seemed all too fast for someone of his bulk, he bolted 20 feet to the nearest exit, ramming into a large wooden door and reducing it to splinters with one collision, making it past the Rockrete wall and finding himself facing two patrolling troopers. He towered over them. They couldn't even get a shot off before they fell dead and bleeding. His back now to the wall, the exit was to his left, and a long corridor to his right. Uriah was not about to leave his fellow Astartes however. He couldn't quite get a good vantage point to aid them tactically at the moment, unfortunately.