Scotty shoots Cumberbatch on the vengeance and he's out with one shot. Unfortunately Uhura must have beamed down to the floating barge with a really shit phaser! Multiple shots and he's still going ! An inconsistency this time...
Maybe he was just playing stunned on the Vengeance to wait for the right moment to attack.
These are things that I can overlook, but beaming from Starfleet HQ to Kronos?