Improving the M-78-70-B Coyote Fighter/Bomber

[LexieAssassin]

M-78-70-B Coyote Fighter/Bomber (First Iteration)

Here we see the original iteration of the FPIF-M-M-78-70-B F/B. This iteration was w/o procedural wings installed and was an attempt to design the aircraft as close to the intended aesthetic as possible. It is much larger than intended and had issues with extreme pitch instability at moderate AoAs.

http://imgur.com/PFDPsr2

M-78-70-B Coyote Fighter/Bomber (Third Iteration)

Here we see a more properly scaled iteration of the jet w/ procedural wings. It major problem is either left or right roll after the wheels leave the ground, which forces an eject despite full ailerons and RCS thrusters. The roll seems phantasmal and I've been unable to find a cause.

http://imgur.com/iE797qE

http://imgur.com/B3RDQL3

http://imgur.com/cvj8mHX

http://imgur.com/XzmjLBY

http://imgur.com/pewNBi1

http://imgur.com/HV1u4Ca

CRAFT file: http://pastebin.com/t4BJJCxT

Mods used: FAR, Firespitter, Procedural Wings

Here's what I need help on:

1. Solve inexplicable roll issue.
   
2. Increase High-Alt/Space endurance so that a 100KM can be obtained and deorbit. (Space Carrier launch and retrieval.)
   
3. Add VSTOL ability. (Very Short Takeoff and Landing - I'm thinking 1/4 space center runway or less.)
   

Constraints:

• Must maintain general atheistic appearance.
  
• Must be maneuverable but also be able to punch it. (Go fast.)
  
• Must remain stable under keyboard controls.
  

Bonus: Internal bomb bay.

Bonus: Minimal armament is 1x 20x110mm Gatling cannon and 2x 12.7x105mm Gatling guns on the right and left of the cockkpit in the wings, respectivly. Find a way to simulate this, and I'd be incredibly grateful.

Thanks ahead of time,

LexieAssassin