Big guy's having the worst day in his career.
'This was supposed to be an easy kill,' the final LMB Gunner thought to himself as he faced down the Second Wave Agent. Sergeant Stone was a good soldier; he believed to himself that he was one of the best in the Battalion. He's thought himself to be stalwart, stoic, and steadfast. Even so, as he readied his shield and pistol to take down the Agent, his eyes took one final glance to his former companions. Behind him was the body of Corportal Wills and to his left, next to the crates, the corpse of Corporal Fallon. Greenhorns compared to him but were nonetheless experienced and skilled enough to take on the other criminal factions in Manhatten without a sweat. His didn't get a chance to know more about his other squadmates but he knew them just enough to know their strengths and weakness, and their likes and dislikes.
That didn't really mattered now: within a few short minutes of engaging the Agent, Sergeant Stone watched them fall.
The Agent readied his own firearm. The Sergeant readied his shield.
They were so focused on each other that they didn't notice the sudden, bright light enveloping them.
A few minutes earlier in your world, you and your harem of how many monsters (didn't really stop to get a head count), decide to engage in a little summoning ritual - "for fun," the Vampire in your sizeable harem assured you.
A circle of your blood, a few pentagrams and demonic symbols here and there, some candles surrounding the whole thing... the usual. You added some more strange symbols you didn't recognize; once again, the Vampire assured you that these additions were fine. She added that you only had to recite the summoning incantations as normal but don't add the lines that referred to any specific location, race, or person. The Vampire wanted this summon to be as random as possible and to receive a being from as many possible dimensions as possible. She only really cared about if this summoned being was "f-ckable."
You've never heard her say that before. Hm, strange.
The monsters wanted this one to be an "experiment:" they wanted to see if their demonic power combined was able to summon another - preferably sentient and civilized - being from another dimension.
Also as per usual, you and the harem began the lengthy "process" of activating the summoning circle; each climax adding to the noticeable increase of demonic power in the circle.
The circle glowed brighter and brighter until suddenly the light emanating from the circle exploded. The force of the blast knocked you back considerably but the girls didn't seem to be affected by the blast that much. You didn't expect this from the ritual but neither did the Vampire who proposed the idea as well.
Coughing and confused, Sergeant Stone lay flat against the ground. He risked a glance at where the Agent was and to his shock he also found the Agent in the same position. He also noticed a number of rather shapely legs surrounding both himself and the Agent, including what he could only describe as the body of a really big snake. No matter, Sergeant Stone still had a mission. The Agent was getting up but the Sergeant was going to get up faster.
His hearing didn't come back as fast, though he did here a couple of excited, female voices coming from all around him. One of them screamed.
"MEN!" one of the Harpies in your harem shrieked. "Two of them!"
"H-how...?" the Vampire asked to nobody in particular. "There should have been only one..." She hastily skimmed through the incantations book, looking for some fine print her superior eye sight somehow didn't see.
You heard from somewhere how one of them was "going to take the big one in white." The harem was crowding around the two obviously masculine figures on the ground. They were all excited - really excited. More excited than you had ever seen them be. You were kind of jealous, but that didn't stop you from pushing through the now horny wall of monsters to check up on the poor men that he accidentally summoned.
You did notice that they got up from the ground real fast and judging by their body language, they want each other dead. Whatever they were holding in their hands didn't look friendly and the way they aimed those weapons towards each other - like two enemy crossbow-women - you knew you and your harem had to do something before someone gets hurt.
The two men either didn't notice the crowd around them or didn't care.
The angry, masculine energy they were unconciously blasting out of their bodies was frightening.
The crowd of girls backed away: some readied their combat forms while some cowered behind the stronger ones.
What would you do?
Notes (some are optional restrictions - marked with a double plus; you don't have to abide to them. Bonus if you can somehow make your response satisfy the note marked with the triple plus):
+ Sergeant Stone is the big guy with the shield in the image. The Agent is the player character in the same image.
++ You can change to event so that both the Agent and the Sergeant may be summoned with all of their gear intact, some of their gear intact, or none of their gear intact.
++ Assume Sergeant Stone and the Agent both of "wills of steel:" that is they aren't easily swayed by the demonic charm some of the girls in your harem have.
++ Assume the Agent is an expert in various martial arts.
++ Assume Sergeant Stone is almost as strong as the Vampire.
+++ Either the Agent or the Sergeant must be defeated. No draws or deaths. Only one of them can remain as the victor.