1. Is OZZ 117 allowed to join up with a unit such as BBQ Squad or is he limited to being part of only heavy units?

2. If he is able to join with a lighter squad, we have a problem to resolve. Luther targets 3 armour units like OZZ with 5 dice. and 2 armour units like those in the BBQ squad with 6 dice. How is this resolved?

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A Hero has to be the same Armor Class as the squad he is joining. Pg 14 Main Rule Book