The death of Imperials was not something that was ment to be taken lightly, they were innocents that only served to protect the Empire and its customs. Offering your services as a soldier of fortune never ment giving up your ideals, atleast not for those that had any ideals. A man is nothing if he doesn't have anything to strive for or believe in, and the believes of Severianus included the Empire. Killing a simple scouting party that ment the group no harm was nothing but barbaric, and only served to aid the Stormcloaks in their stubborn attempt at an independent nation that would only serve to aid the Aldmeri Dominion.
Severianus was about to intervene when he noticed how easily the first few soldiers went down, they acted clumsy and inexperienced. The supposed Imperials did not use Imperial battle tactics but chose to go in swinging, to the untrained eye they would seem like new recruits. These were no new recruits though, a keen observer would have noticed that one of the men that had fallen in battle had opted to use a two handed weapon, a warhammer. No Imperial used those, not even the Nords in Imperial service. A sword and shield with proper training would always beat a foe carrying a two handed weapon, these so called Imperials were Stormcloaks in disguise. Probably up to no good, they were most likely inspecting the area around Whiterun for a future Stormcloak assault. It was no secret the jarl wanted to stay neutral, but his loyality to the empire was no secret either, when the time was right he would have sided against the Stormcloaks.
Now that his moral dilemma had been resolved, Severianus opted to charge into the fray. Three of the Stormcloaks in disguise were already laying dead in the field, five of the others were taking a stand and engaging the group that had attacked them, one of the more nervous and most likely new recruits chose to flee the scene after the roar, the man even dropped his weapon so he was able to run faster. He wasn't going to Sovngarde any time soon, and his friends would curse him to Oblivion. One of the men stood out though, the tenth and last man. He too chose to run, but his hands were bound. This was no Stormcloak, this was an actual Imperial, probably a captured messenger. Possibly with a message to Whiterun or one of the forts in the province, he could not be allowed to fall. Atleast not in the eyes of Severianus.
Severianus arrived just in time to see the fresh blood of one of the attackers spurt into the air as the female Khajiit twisted her blade into his neck, the very sight of it made him feel the hunger deep inside of him and lust to sink his teeth into the bleeding corpse. He resisted though, he would feed in the dark when they wouldn't notice. The Khajiit seemed to focused to much on her prey to be able spot the archer that had taken aim at her, nor did she notice the arrow that was about to fly through the air in an attempt to puncture her skin and stop her heart from beating. Rather then hit its target, the arrow hit the ancient shield of Severianus which easily deflected the blow and in turn saved the Khajiit. He wasn't expecting a thank you though, and he didn't bother to look back at her as he moved onto the actual field of battle.
The first man that charged at him was young, much like the others that were currently being slaughtered. He probably fell for tales of glory and manipulation by those around him, sweet talked into glory and the after life in Sovngarde if he was willing to kill and draw blood in Ulfric's name. The boy simply charged, as if he was wielding a warhammer or greatsword instead of the Imperial sword in his hand. Severianus held his ground, his feet turning slightly and sinking into the sand as his shield was raised. Once the boy was close enough, Severianus lunged forward and bashed the shield against the boy's chest, his ribs cracking for everyone to hear as he flew through the air and landed on his back. No cursing, no further resistance, just the sound of crying filled the air as the young boy sobbed from the excruciating pain. He wouldn't be able to fight anymore, not now atleast. Imperials showed Mercy, even to those who wronged them. Severianus opted to kick the Imperial blade away from the boy before stepping over him, he wasn't going to take his life. He didn't like killing childern, that included boys barely old enough to call themselves an adult. Unfortunately the next soldier coming for him was a woman, another one of his weaknesses.
She was smarter then the boy before her, she had kept her two handed weapon and attempted to swing it at him from a distance, only to hit his shield repeatedly. After her third blow he pretended to stagger, his stagger resulted in the woman raising her weapon higher then before and charge. Rather then bashing her in the chest like with the boy before her, Severianus chose to bash the shield against her hands to force the weapon flying. The woman cried out as the weapon fell to the ground, her fingers either having been broken or heavily bruised from the strong Imperial shield that hit them. Severianus stepped forward, raising his foot and kicking her in the stomach, sending her backwards and off feet, only to land on her back. ''Stay down and you will live to tell the tale, I don't want to kill you, neither does the Empire. I can only hope you Nords eventually come to your senses, for your own sake.'' Showing mercy wasn't a sign of weakness, it only earned you respect, and one day you might be lucky enough to be shown the same.
With two more of the patrol down, the remaining members opted to surrender to those whom engaged them by calling out they would yield. He had shown mercy but he could not be sure that any of the comrades he was with would do the same. Severianus lorded over the two fallen before him though, standing there as if he was protecting them from further harm. ''Do not kill the fleeing Imperial, he has valuable information for the war effort. If he falls to any of your weapons then I will take revenge for him.'' His loyality to the Empire might be an issue for his employer, but if he was going to plan on raiding Imperial shipments or any of the sort then he would have a problem. Loyality or not, if an Imperial were to attack Severianus he would defend himself, but most likely by showing mercy unless forced to otherwise. He had no problem killing and executing low lifes though, but not soldiers.