I do like that you've included the "-master" gimmicks (though it looks like you forgot about the poor old Actionmasters) and made them an important part of the story, but have you considered allowing people to play regular cybertronians on the autobot's side or letting Decepticons employ the different -master technologies? I dunno, it feels wierd to have that separation, like you can't play a more normal Transformer if you're an autobot and you can't have a gimmick if you're a Decepticon.

On another matter entirely, what Decepticon "origin story" are we going with? I mean they're obviously always the antagonists, but the IDW comics paint them in a somewhat more sympathetic light than most other takes on the G1 continuity, for instance, and gladiatorial contests have been a big part of Megatron's origins and the creation of the Decepticons since the original Marvel comics but weren't part of the original cartoon (that I can recall). So, justified freedom fighter movement turned opressive military dictatorship or just plain evil group using superior strength to achieve dominance? What is the Decepticons' deal?