I am not sure I understand the concept of the US artillery. The scenarios list the number of "packets" available. Each packet is worth six firepower factors. For example, in Scenario 01, the US has 18 artillery (three 6-point packets) available each turn. 1. Can each packet be broken down (2 packets of 3 firepower factors each) or must they be used as one packet of 6 firepower factors? 2. Can some/all artillery packets be used on the same target? Thanks!