yeh, it was suggested that I did sunshine/frostfire, pitfire and their friend Nitro.
Nitro has a very similar model to that of ratchet's and ironhide's. but he is sort of the big geeky and weapon development addict. he is smarter than sunshine considering she doesnt even know how to read. so he was kept back for pitfire's education while sunshine went to try and find ways of getting food and credits.