"Get back! I said get back damn it!" Screeched Hawkeye as he pulled back his bow string. The creatures were inside alright. A mob of 'em were staring down at him with more on the way. From behind he could hear the remaining normals screaming and tearing at each other to get away blindly. All innocent people with panic so clear in their voices. But, god help them there was no way out. A massive mystical shield covered the compound on all sides. It was a last ditch effort by the Avengers and now they were trapped like rats. At the time it had seemed like the best solution to the epidemic. The city council and even the military agreed. They just had to give survivors a chance for a cure. Not anymore. That was clearly all over. The house of cards fell and the monsters pushed forward looking for human flesh.
A thin defensive line of the National Guard stood in position in front of the crowd. They were Barton's last detachment and it was all that was left between disaster and salvation. As the dead drew near regretfully, Clint gave the order to open fire. But it wasn't enough. There were too many of them. That was when the mystical shield covering the compound suddenly fell. It was Wanda of course. Now they had an opening. Clint shifted his gaze to his men and began barking out orders. "Captain! Get these people out of here! Leave a third, we will cover your tracks. Go!"
The line broke with the refugees just as Hawkeye turned and fired on the creatures. An exploding arrow shook the compound as the dead burned alive. The smell of their stench turned Barton's stomach. Maybe some of these people could get out of the city. Maybe they would live. He had that at least.