TASSIN LA DEMI LUNE
Outer Planets only replaces Venus Fly-by and Mars Fly-by. The Mercury mini-expansion does replace Inner Planets Transfer, but that expansion was from the base game era.
After many plays, I decided to add an aerobreaking maneuver from IPT to Earth Orbit (with a difficulty=1, that seems fair).
The purpose is that it didn't make sense to me that you need to go to Mars or Venus Fly By locations only to test aerobraking, since you have a planet with an atmosphere just below your feet.