Okay, here's the shoothouse setup:
Some explanation: there are five hostile targets (T1-T5) and two no-shoots (NS1/NS2).
When the buzzer sounds, T1 and T2 will move as indicated by their red arrows. T1 comes into view first.
Upon audible gunfire, NS1 begins moving as indicated by its green arrow. It represents a fleeing civilian.
T3 is in motion in a circular patrol route as indicated by its yellow arrows. It checks its starting room at the end of each cycle.
T4 will move into the hallway upon audible gunfire. It will patrol the hallway back-and-forth until neutralized.
T5 and NS2 remain in the final room. NS2 is being used as a meat-shield for T5.
Further individual details will be inbound in PMs shortly.