Robotech Inherit the Stars - The EDF Assault Shuttle is based on ASC Banshee destroyer (by Soheitb is licensed under the Creative Commons - Attribution license) design.
Orbital and Planet Assaulting Forces can not retreat.
Enemy HQ units can not be Planet Assaulted.
1) High Orbit is on the top of the Game Board and they are capable of launching Planet Assaults.
2) Low Orbit is on the bottom of the game board and they are capable of launching Planet Assaults or landing in a Sector/Region on the planet next turn.
3) Deep Space is on a paper plate.
ASC Banshee destroyer by Soheitb Sep 5, 2017 https://www.thingiverse.com/thing:2518982