Jace aimed the sniper at the gathering of Holy Empire soldiers and then looked at the mix of mercenaries and Circle of Yuri soldiers that were standing opposite them. It seems the Talus Mercenary was talking with the strangely armored female soldier he had seen before he ran into the mercenaries. The same one that had slayed that off brand vampire.
It seemed the glass from the upper floors had distracted them. He took aim at the enemy mercenaries. Emptying his magazine before switching out to another one. He was not checking to see if his shots killed the targets. But he did see that both groups decided the other side was responsible and started shooting. On the other hand the two vampires hidden among the mercenaries made a line straight toward the winged woman.
As he was shooting he had to jump back grabbing his tri-cannon as he moved. He used a hand that was holding the sniper to move it to his back. While leaning back so the curved sword did not hit him.