Blast Off doesn't need a write-up in some pathetic, grubby little human database. It might matter to some robots what others think of them, or if they think of them at all, but Blast Off couldn't care less. No, he's literally and figuratively above your average Cybertronian riff-raff. The other Combaticons could completely forget he's up here, orbiting so far above the Earth, distant and alone... with only the empty void for company... and he could care more. Yes, certainly.
Lesser robots could hardly understand the joy... yes, that's it, the joy, he finds in efficiently and remorselessly annihilating targets from such a great distance. Blast Off was quite simply "built better" than the rest, you see, and so needs nothing from those tiny beings moving about so... so very... far away below. Blast Off... Blast Off is quite happy with his superior position, yes, quite happy and... and quite alone.
Blast Off condescends to combine with his fellow Combaticons to form Bruticus.
His alt-mode is a Space Shuttle.