Why was CJ concerned about the alarm on Burt's door especially since 1. scratch was already aware of CJs presence 2. After CJ hears that her group has taken the armory 3. And when Burt tells her to let him out and take a shot for himself!!! Was she just being stubborn? Or was the alarm rigged with explosives? Her character is like the Yin Yang of being ultra prepared but then falling short when shit hits the fan (usually due to her emotions).