This version of the C-500 is made especially for bombing or deploying rockets. The cargo door at the rear is gone, the C3 has door on its belly which turns it into a perfect bomber. Additional Pistons are mounted above the door so that you can place rockets on them making the plane capable of firing anti-ship missiles like the Cleaver rocket.
(If someone would ask where's the C2 version, it is the combination of the C and C3 version, if people want it I will upload it)

The ideal throttle is 20% (with all 4 engines turned on)

Controls:
Trim - Cargo Doors
Cam1 - Main Cargo Bay Camera
Cam2 - Cargo Door Camera (inside)
Cam3 - Cargo Door Camera (outside)

Other Variants:
- C-500B Zeus with rear cargo bay doors
- C-500C Zeus with different rear cargo bay doors
- C-500C3B Zeus with bigger belly door for bigger stuff