So I have a theory. I think that there is a VERY strong connection between Soundwave and the Eradicons and/or the Vehicons. I believe that, as the show has implied, the Eradicons are Sentient, with personality, thoughts, memories, etc. But there is a reason that they all look the same. I think during the war, Soundwave worked on some new technology. This technology would allow him to control and gain the senses of other beings. His first project was the little drone Laserbeak. Obviously, Laserbeak had no prior life. To test if this technology would work elsewhere, Soundwave took a few of their extra troops out of the field and reformated them. Now, Soundwave can use the Eradicons as a large set of weapons. Soundwave can see what they see and control them at will. The Eradicons still have their memories and personalities, but they cannot express this, seeing as they are absolutely controlled by Soundwave. So, yeah, just a theory. I'll probably be proven wrong soon, though. Oh and I included pictures not for the need of them, I just like pictures in threads.