Yet another "plane within a plane" thingy. One use of this is to take down difficult targets because the auxiliary plane can't be targeted by AI. One the other hand, you don't have your aiming scope or missile radar so you have to aim and shoot. Or suicide attack.
To deploy this baby :
-Take off. Full throttle to 270mph then full pitch up, release the pitch almost immediately after lift-off.
-Once higher up, AG7 to start the auxiliary plane engine. Wait until the engine is fully powered up, level the plane and use AG4 to detach, AG3 to deploy the chutes on the main plane. Also de-activate AG8 to turn the main engines off.
-Switch to the aux plane camera and enjoy. AG2 will fire the missiles.