Batman 557 (DC, 1998)
Aftershock: Ballistic's Evidence - Written by Doug Moench. Art by Vince Giarrano and Sal Buscema. Cover by Rodolfo Damaggio.
Batman and the super-gun-for-hire named Ballistic join forces to unearth a mysterious box buried under tons of rubble, while trying to evade armies of thugs that plan to kill them before they learn what the box truly contains!