Umm, johnmerz, This is about City Siege 2, not Sonny, anyways, i think spies are pretty useful for getting stars and evacuating citizens, for fighting, i'd say either the veteran or the tank are the best, tank is probably better but it has huge mobility issues making it inconvenient,imagine if in the next one we get walkers which have the mobility of infantry and the armor of a tank, that would be a ultimate mix...