And in fact, they are easy to make, because the Project Aces team already have all the models.
This could be given as the return of some kind of super-weapon back. For example: Osea returned to the development of SOLG and built many SOLG's in 2019, part of the satellites could be captured and dropped by eruseans. One could also add to this mission the defense of the control complex of one of the satellites where at the end of the mission SOLG shells and destroys erusean forces.
In addition, in such raids, we will can participate on both sides of the conflict, for example: Osean attack on Stonehenge and Erusean attack on Excalibur/Avalon dam etc.
Dreams sweet dreams...