Winter Soldier + Civil War: the Damning Number

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This is my own jarring moment of disbelief, in this screencap from the newer trailer.

The figure that draws my attention, circled in red.

Three Helicarriers, with embarked air wings, and the crew counts that probably entails...and this is the casualty number they go with here for the Battle of the Triskelion?

I'll still see the movie, because I suspect we're in for a good show otherwise. But this detail breaks the believability a bit for me. Even with the evacuation of the SHIELD HQ complex in progress.