2 of these missions are super easy to solo. The first is "Restoration" on Earth. 90% of the mission is in a level 2 non-instanced area, and the instanced fight offers an easy control point and locations where you can shoot but not be shot. The other is "Eye of a Gate Lord" on Venus. Bring a high-powered scout rifle and sniper rifle. You can shoot out the transfer gates from long distance without allowing hardly any mobs to pass through, and the hobgoblins always spawn in the same locations. Take the hobs out and move on. You can take on the gate lord itself by running back to the start steps and safely sniping it... never a need to fight the adds. Also, pro tip... you don't have to take the mission they give you. Don't like what you got, go back to orbit and start over. You don't spend a kill order until you finish the mission.