I have tested them a few times. I find them very expensive in the requires and they receive massive damage when bombing tanks / infantry. The damage is a bit bigger but i find them kinda useless compared to the strike bomber (I know it has more range).
I would suggest to make the heavy bomber more durable vs infantry and tanks that would maybe make it an alternative vs a strike fighter.
I would suggest to make the heavy bomber more durable vs infantry and tanks that would maybe make it an alternative vs a strike fighter.