Other than the Hoth characters that are required for special missions during a certain phase are there any other characters that won't show up during platoon missions.
For example my guild had to deploy a 3* Logray and Paploo today. It was fine because 50 of us have them at 3* but if they asked for a 6* or 7* Logray/Paploo we wouldn't be able to fill that platoon. And it's quite unfair considering that they are not farmable.