Albert was picking up the artillery unit when he got the comm signal. He rolled his eyes as he heaved a sigh, but smiled at the serendipity. He'd have preferred to make a truly spectacular explosion, but, priorities. Perhaps they'd all dropped the ball; he hadn't anticipated something so practical as an enemy retreating when it was, well, the sensible thing to do in the present situation.
They needed it to be as long as possible before anyone knows anything is wrong, and be gone when the cavalry comes to investigate.
Deadalus turned, sighted the target. "Ok, remember, don't aim where they are; aim where they're going to be..." He called out over the comm channel, "Watch, you guys are going to love this!"
With that, he pitched the missiles, cradle and all, and waited to confirm the hit before he completed his objective and the mission.