Can I get a little more clarification on this point? It sounds like the bombers have to fly completely different routes to the target area.
Let us say there are three targets (A, B and C) and there are three squads (A, B and C) that are assigned bombers to attack those targets. Let us also say that Squad A will bomb Target A, Squad B with bomb Target B, etc.
Can the three squads fly together and all go from A, B and C for mutual protection as long as the squads only drop on their assigned targets?
If Squad A has bombs left after hitting their assigned Target A, can they drop on targets B and C?