...about taking an SSTO spaceplane to orbit, deploying a satellite, de-orbiting, and landing on the actual runway.

You’ve got to deorbit at the right point, maintain control through re-entry without overheating anything or skipping back off into space, and then manage to line up on the runway and bring it down gently despite having almost zero fuel (which reduced stability by a huge amount due to the center of mass moving)

#KSPlyfe