Hi! What's Starscream's deal in your AU?
his skills lie in aerial combat and his passion lies with astronomy. he was pressured into dropping out of the academy of sciences once the war started up and has been bitter about it ever since, so he shifted his mindset to "if they want me to be a warframe, they'll get one," and fought his way into the upper echelon of military leadership. now he's second in command of the decepticons and retains control of the air force. he does frequently butt heads with megatron and the two often get into lasting arguments over simple matters (it does not escalate into physical violence).
personality-wise he's loud and brash, but cunning and quick witted. he's got a lot of his g1 personality along with having a similar alt mode. holds a lot of grudges and knows to always watch his back with how many enemies he's made in both factions. in my head he sounds like invader zim.
during the crash he is flung into a broken console and severely electrocuted, resulting in him being kept in a medically induced stasis lock until he can be properly treated. he won't deny the resulting scars are pretty badass.
skywarp and thundercracker are worried sick about him back home on cybertron...
(side note: in shipwrecked, jetfire is alive and well on cybertron and the two met after starscream had already dropped out of the academy. jetfire is a decepticon and the two are strictly acquaintances)