"And you're not the police. This is a crime scene alright. Someone KIDNAPPED my daughter. That's a crime, and any jury will sympathize with me. Besides, the Federal Assault Weapons Ban expired back in 2004. I have all the necessary licenses for my M2 Tactical."

Her daughter Stacy pleads in a frightened voice, "Please...get me out of here. The scary man and monster took me here and only gave me water. The monster...it hurt me."

Doreen continues striking at the chains.

Her weapon looks like this:
Spoiler
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Its ammo capacity is a nice 5 + 1, and she was firing it at a pretty good pace with accuracy. Her military training shows.