Alexia rounded the corner to have her vision filled with red boxes, indicating brain activity but no other life signs. She pressed a button on one of the grenades and tossed it into the center, where the undead stopped and turned towards it. most of them clustered around the Biobomb, which was simulating a living creature, and some even got confused and attacked their companions, but the main purpose of it was to cluster them together and take them out before the battery died. The only real problem with the Biobomb, she reflected as she swung her gun towards the group, was that it gave squeamish people something to complain about, seeing as it contained a real rat's heart.
She took aim and pulled the trigger on her weapon, and almost instantly there was a reaction. Glasses from the dead researchers shattered instantly, and the bones within the zombies soon followed. She kept it going for a few seconds before it overheated and shorted out, forcing her to drop it. Cursing, she threw another Biobomb and ran down a side hall. She kept running, looking for a specific lab. When she found it, she keyed open the door as quickly as possible and took off her vest, putting it on again after getting into her hazmat suit.
"Looks like you get a field test after all," She said to a vial of grey liquid, lifting it gently out of it's cradle. She didn't run to the system control room, because she knew they were all dead if she dropped what she held. Instead she hit a button in the middle of the vest, emitting a counter signal to her own life signs. Now she was all but invisible to the zombies, and she carefully made her way to her destination. She stopped on her way to check that Jojo was still in his cage. It would be bad if he had found his way into the halls when she executed her plan.
In the control room, she sat down at the console and started typing furiously. First she set the sprinkler systems to only activate in rooms where the infected were detected, then she softlocked every door, meaning a scientist with a key code could still get through. Then she input a series of complicated commands that would finilize her plan. Pressing the intercom button, she spoke again.
"Attention. I am initiating a Firebird Protocol. Anybody who cannot escape the building lock yourself in a clean lab until further notice. You have thirty seconds to find safety." And with that she shut down the intercom, turning instead to the fire system access pipe. She opened the hatch and poured the grey fluid into the pipe, then shut it. After the thirty seconds were up, she hit the start button on the computer and watched her handiwork.
From all the sprinkler heads a spray of Project 7 soaked the infected, eating them where they stood. Once all movement in the hallways had ceased, the computer switched to phase two, turning the heat up in the affected areas until it reached 400 degrees Celsius. After the last of Project 7 was burned away, the computer finished its cycle and cooled the building down, all of the cameras showing nothing left but piles of black powder. "Well," Alexia sighed, glancing at the occasional screen of a scientist in one of the safe labs jumping up and down. "I guess that's one use for it."
She took off all of the equipment she had and sat down in the control chair. Her moment of peace was short lived however, as suddenly she was startled by the sound of her own heartbeat and a burning pain all over her body. She screamed and thrashed about, catching the edge of the metal table and crushing it flat, a red haze covering her vision. Her screams turned to incoherent babble as the agony affected her brain, and she fell to the ground writhing. Finally the sweet oblivion of unconsciousness welcomed her, and she didn't get to see the panicked scientists rushing into the room to carry her to bed.