"Suspicious target spotted! Quick! Sound the whistle!"
After vaguely spotting a flash of silver light racing quickly across the plains, the soldier on the lookout tower tensed up, first blowing the warning whistle, then immediately waved a flag toward the distance.
At the seven o'clock direction, a target, possibly with a special weapon?
Squinting to decode the flag signals from the lookout tower, a commander leading a squad of over twenty powered armor units was heading at full speed toward the Boarding Tower. He first maneuvered his powered armor's arm to gesture at a team member behind him, then pointed in the nine o'clock direction, making a grabbing gesture to indicate that they should go confirm the target.
Amidst the dull warning sounds, the team member's powered armor replied with a gesture of understanding, then promptly slowed down to detach from the team. He then changed direction, heading toward the designated target location.