In this revolutionary system, the salvo from a single missile pod contained two types of missiles; eight of the missiles were standard Mark 23 three-stage MDMs with a variety of warheads and ECM. The second type was a single larger Mark 23-E missile fitted with a faster-than-light telemetry link instead of a warhead; this missile acted as a control node for the other eight missiles in the pod and allowed a Keyhole II equipped ship to provide effectively real-time control to the missiles across their range envelope, resulting in exceptional accuracy and ECM resistance. If the Apollo missile were destroyed, the rest of the cluster could continue on with whatever their last telemetry had given them.