The fighting started in an instant. Despite of having grown used to spontaneous violence, he was never prepared for it. Because of the suddenness, he had no time to get into any advantageous firing position. Only once during the short skirmish had he fired his rifle, for there were hardly and good targets to shoot at with minimal risk of hitting allies.
The fighting ceased just as quickly as it had begun, which was also no surprise. Jacen heard Igna make a comment about how short the fight had been, but before he could respond archers began raining arrows down upon them from the walls. Jacen, being a rifleman, had no shield and thus was vulnerable the missiles raining down from above. Instead, he did the only thing he could think of, he took cover behind Igna so that he could borrow her shield. Hopefully she wouldn't mind.