After some checking it looks like all the 410's had/have the divebrakes.
It was built into the wing with an upper and lower slotted design.
Looking at the video a second time I wonder, if we ever get the 410,how the rear firing guns would be modeled.
It would seem like a waste of ammo if both guns fired all the time,I'm pretty sure the gunner could control which gun fired and it makes me wonder how that would be modeled,maybe a primary,secondary fire system only it would be a left/right instead with a fire all at the appropriate firing angles.