Tenebrous
BigG > Mad Celestial Host
Faulty logic to assume that just because it appeared to be normal military ordinance, does not mean it actually is.
Starscream appears to be a typical F22, yet he is able to fly into space, and indeed, to the moon (in Transformers: Reign of Starscream comic, which is canon and part of the movie continuity).
Even more on point...a few of Starscream's "nomral military ordinance" discharges destroyed bumblebee's legs.
Contrast this with the pounding that Scorponok, a small drone transformer, whereas bumblebee is a full-sized autobot, took with a10 thunderbolts and the ac-130 gunship, resulting only in a small piece of his tail being broken off...it's quite clear that starscream's weaponry is vastly superior to conventional ordinance.
Do you think ironman could stand up to the same punishment, when he was running away from a single missile fired by an F22? No.