A system for precisely timing the firing of two or more weapons in order to create a desired arrival timing of two or more projectiles on a target. Global Positioning System ("GPS") transceivers are used to determine the position of each weapon and report that position to a command post. Heading-to-target and ranging information is also preferably transmitted so that the command post is able to accurately fix the position of the target, and the range of each weapon to the target. Computations are then performed in order to determine the firing sequence needed to achieve a desired arrival of two or more projectiles on the target. Firing of the weapons is then performed automatically in order to properly execute the computed firing sequence. Interactive command and control data is fed back and forth between the weapons and the command post.