The exodus of the Decepticons

The Decepticons inhbiting Charr in season 3 has always raised a few questions in my mind, so I thought I'd share my views with my fellow Seibertronians and ask what you all think.
First, since we only ever see named characters on Charr what happened to the lesser Decepticons, like the generic seekers and the guys we see serving Shockwave in desertion fo the dinobots? Were they captured? Killed? Or did they just surrender and were allowed to return to civilian life? And what became of Shockwave? Finaly, why did the named Decepticons retreat to Charr in the first place?
My theory:
Some of the generic 'cons would've died in the battle against Unicron, afterwards the survivors were detained by the Autobots. Most of them, especially the lower ranks, would eventually return to civilan life, but leaders like Shockwave were put on trial for their crimes, and either imprisoned or sentenced to death. Since no rescue attempt is ever made for poor Shocky, I assume that he was executed. As for the named 'cons, since they are the ones that hang around with Megatron, I've always thought of them as being his "elite guard" for them civilian life was not an option, if they returned they would be executed like Shockwave. This left them with no other choice but to retreat to a burned out world, where they would continue to resist the Autobots untill a day came when they could attempt to retake Cybertron.
So, what do you all think?
First, since we only ever see named characters on Charr what happened to the lesser Decepticons, like the generic seekers and the guys we see serving Shockwave in desertion fo the dinobots? Were they captured? Killed? Or did they just surrender and were allowed to return to civilian life? And what became of Shockwave? Finaly, why did the named Decepticons retreat to Charr in the first place?
My theory:
Some of the generic 'cons would've died in the battle against Unicron, afterwards the survivors were detained by the Autobots. Most of them, especially the lower ranks, would eventually return to civilan life, but leaders like Shockwave were put on trial for their crimes, and either imprisoned or sentenced to death. Since no rescue attempt is ever made for poor Shocky, I assume that he was executed. As for the named 'cons, since they are the ones that hang around with Megatron, I've always thought of them as being his "elite guard" for them civilian life was not an option, if they returned they would be executed like Shockwave. This left them with no other choice but to retreat to a burned out world, where they would continue to resist the Autobots untill a day came when they could attempt to retake Cybertron.
So, what do you all think?