It all happened so fast....

In a matter of minutes, the creatures attacked all sectors of the HQ, a complete siege, completely unforeseen.

Frank had escaped into the maintenance tunnels with the coroner, who's leg was injured by one of the creatures.

Frank dragged the injured coroner through the tunnels worriedly, keeping his pistol up.

Coroner: Damn! Agh! That hurts!

Frank: I know! Just hold out for a while longer! The security room is up ahead!

The coroner heard something fall around the corner.

Coroner: What was that?

Frank looked up to see what was coming around the corner.

What appeared was what could only be described as a evil omen incarnate, a black, boned monster, that hissed with a venomous tone.

A true apex predator, a alien hunter.

Frank ran with the Coroner in his arms while the creature made chase.

The coroner fired his pistol at the creature, but missed.

Frank opened the security room door, and quickly closed it back when he and the coroner made it in.

The creature banged at the door for a moment, but to no avail, and left to find new prey.

Frank lifted the coroner into the chair, and checked the security cameras.

The creatures had entered the HQ through the sewer maintenance area, and as the attack continued, they dragged several officers into the sewer tunnels.

Frank checked the computer lab, and found that Emma and several other officers had locked the creatures out, and were holding fast.

Frank also checked the interrogations cells, and found the researchers had been viciously killed, among them was Banks.

The coroner leaned up.

Coroner: Check the main offices, we gotta find the chief....

Frank checked the main offices, and found a war zone, with the chief holding his ground along with several other officers, all armed and firing.

Frank: Everyone is holding their ground, we gotta find a way to get rid of these things....

The coroner pointed at a screen.

Coroner: The bots....they are designed to deal with large scale threats....you can deploy them from here.

Frank did as the coroner said, and deployed the bots across the HQ.

Frank watched as the bots pushed back the creatures, killing many of them.

The bots suffered heavy casualties, but still managed to push the creatures back into the sewer tunnels.

Frank sat back in relief that the creatures had been defeated.

Timeskip, HQ Main Offices
After the attack was done, the main offices had been turned into a makeshift infirmary.

Frank had brought the coroner to be treated, while he met with the chief and Emma in the chief's office.

The chief made a shot glass of whiskey as he sat at his desk.

Chief: So, ladies and gentlemen, what are we going to do now?

Frank: We know where they are, let's drop some bombs into the sewer and smoke them.

Emma: That's too risky, the explosions could chain into the gas mains throughout the city, it could cause a untold amount of collateral.

Chief: And their is too many to send in a riot squad, and it will be at least a day until the military arrives.

Frank: We don't have a day, those things are multiplying like rabbits, by tomorrow morning, they will have enough to take the entire city.

As the group conversed, a lone bot knocked on the chief's door.

Bot: Permission to enter, sir.

The chief was confused.

Chief: Permission....uh....granted.

The bot entered the chief's office.

Bot: Hello officers, I am Serial Number 104587-D, or Dwayne.

Frank: Dwayne?

Bot: Yes, after the wrestler turned actor who had a affinity for rocks.

Emma: Oh, I get it.

Chief: What do you need soldier?

Dwayne: I overheard your conversation, and have a plan to eliminate the creatures.

The group was confused.

Emma: Um....okay....let's hear it.

Dwayne: The armory contains a experimental explosive device designed to detonate explosives by rearranging the chemical compound of them.

Chief: Alright, what are getting at?

Dwayne: The device can be reverse engineered to be a bomb itself, and it's chemical rearrangement system can make it safe to use around the gas mains.

The group looked at Dwayne in surprise.

Emma: That's genius....

Chief: Good one on you soldier!

Frank: Looks like we got a plan.

The group stood up.

Frank: Let's go hunting.