For those who don't care about the context, here are the action groups :
AG-1 : engine 1
AG-2 : engine 2
AG-3 : engine 3
AG-4 : engine 4
AG-5 : HUD on/off
AG-6 : open/close bay ramp
AG-7 : drop cargo
AG-8 : lights

For the others :

Here is the RC-04 Rising Star. It is a french aircraft, mostly used by the french Air Force as a tanker and troops/material transport aircraft. However, this one is a bit special : it is a basic RC-04, that was bought by the United Nations in order to use it for Civilians Assistance. In other words, this aircraft is used to evacuate civilians from war zone, or to drop food, medical material, or clothes for those who are trapped in war zone. Because of the fact that this aircraft is from the U.N., it is not equipped with armament. It is equipped instead with flares, just in case...

This aircraft can either fly at low altitude or medium altitude ; it is pretty slow (max. 800 kph), but can carry a heavy weight (max. 145t.).

It's crew is composed of 6 persons : 1 pilot, 1 copilot, 1 radio operator, 1 radar operator, and 2 cargo bay operator.

Take-off instructions :
-Close the cargo bay door (AG6)
-If necessary, switch on all your lights (AG-8)
-Lower the flaps (VTOL up)
-Maintain the brakes
-Start engine 2 & 3, with 0% throttle
-Once the green light in the cocpkit stopped blinking, taxi to the runway
-Once on the runway, start engine 1 & 4 while maintaining brakes
-Push throttle to 33% and release brakes

-Once you're in the air, reduce flaps and retract landing gears.
-Then, you can push throttle to 100%

Dropping instructions :
-Open cargo bay door (AG6)
-Release the cargo (AG7)
-Once the cargo is away, close the cargo bay door (AG6)

Make sure to fly slow enough (under 400kph), otherwise each box will land 1km away from the precedent one...

Max loaded weight : 145 000 kgs
Be careful about weight placement...

If you want to change what's in the cargo bay, just delete the green boxes and put something else on the metal frame