"635, SOP take the left!, 15 with me we will go right!"
They didn't argue at the captain splitting up and sprinting as fast as they could to surround the Cannon and shoot the gunners that were using it. "M4 what's the plan!?", "I don't know but you have to trust me", "Right!". There was no time to argue anyway as the sound of more Ferri dolls were enough to tell them that their guns will do the talking. The two clasp their backs to one another aiming at different sides of the alleyway as the first lot come in ready to take them out with their laser rifles and normal rifles.
AR 15 was the first to take the first shots taking out the multiple dolls that came her way pulling the trigger as fast as her finger could let her while M4 held her trigger down sending multiple flurries of bullets down the alleyway killing the dolls that blocked their path. It was their moment to keep moving before more arrive. They leap over the bodies making their way to a concrete staircase to the 2nd floor. However the sound of a clicking noise had sent M4 grabbing 15 and shoving her and herself down the staircase.
In the Knick of time the explosion above rings out sending dust through the stairwell with both girls ear muffs protected them from the explosion from blowing out their eardrums. However the debris was something they had no way in protecting themselves besides hoping that the debris stops before it reaches them in the stairwell. The crackle of the radio was enough to make M4 get up along with 15 to keep moving.
"Guys are you alright!? That explosion looked quite big from here!?", M4 raises it to her mouth as the fast paced footsteps and shaking of equipment was a good enough indication on what they were doing as they could see the cannon through the shattered window. It was not looking at them which was a good opportunity for one of the girls to take their shot. The long barrel aims it's deadly look at the unaware cannon crew that could be seen loading a high explosive shell into the cannons worn out breach.
A though goes through AR-15's mind of the time when Wolf was teaching the girls munitions, Oh those times were all adding up to this momentous moment but the sound of the door being kicked on the left had made 15 swing her gun to the other side but M4 was already on it. "15 take the shot I'll handle them!", "Right!" With a few clicks the scope gets into focus as she takes a deep breath with the bullets whizzing down the hallway. She had to make this shot count or they would have to do it the slow way.
The crew lifts the shell carrying it to it's cannon breach but the sound of a gun had made them look up but there was no use. The sound of a ping followed by a hiss made the soldiers look down to see the shell had been hit. Without hesitation they dropped it and ran but they couldn't out run the explosion with 15 ducking back under the window and closing her eyes as the shockwave and a bright blast blew through the already broken glass window sending shards of glass everywhere.
For M4 who valiantly defended 15 watched the orange blast engulf the hallway making her sprint into the room beside it hiding behind the door hoping that she wouldn't be turned to a crisp and to her luck it began to drizzle out two doors down. The same could not be said about the two Ferri dolls who's melted plastic revealed the electronic components and the metal skeleton that made the dolls look like "Humans", but no human would have a heart so cold that was nothing but a motor grinding against metal.
The dolls fall over each after the other crashing into the hardwood floor, with one of them braking through it and tumbling to the floor below. M4 breathed a sigh of relief looking back down the hallway to see AR 15 come out with a smile on her face along with M4. She wanted to hug her sister but the feeling of professionalism was reinforced with the crackle of their radio. "Come on guys we need to keep moving or reinforcements might arrive".
"Damnit 635"
The others could only look outside to see that there was no more cannon that had sat at the end of the street, looking at any foe that might stand in it's way. The only thing it had now was the barrel lying on the ground, ready to rust up like the rest of the burnt out cars and vehicles that had once roam this area. With a helping hand M4 helped 15 down to the ground level while she helped M4 down.