Hehe.  Requesting a plane we already have.  It's a new approach at least.
Anyway, we do have the Hurri II-D, but the 40mm's fire sequentially instead of in a synchronous manner.  The result is that the recoil actually sends the plane yawing left and right while firing, making aiming very difficult at best.
I believe that historically the cannons both fired at once, so I'd like to see that in AH.