I agree with the previous writer. The following message was sent by the Speaker on all channels. "This is an Emergency Alert. This is not a drill. All Guardians report to Tower Plaza to repel an all out assault of Darkness forces against The City. The following Guardian forces (the highest ranking raid completing teams) Have been selected for a special mission to attack and destroy the enemy command cruiser. The Speaker will brief you further when at a meeting at Tower command. Emergency tone sounds and message repeats.