In the scene in Avengers: Endgame stated as "Morag 2014", we see Hawkeye/Ronin and Black Widow take off on the Benatar. The scene is a replica of the opening scene from GotG I, where Quill lands on Morag to grab "the Power Orb", later to find out its the Power Stone.
However, if I'm not mistaken, the Benatar doesn't even exist yet because it was a restoration of the ship (the Milano....?) that got destroyed when Ronan's ship crashes on Xandar.
So in Endgame, how do Barton and Romanov end up flying the Benatar, a ship which hasn't been built yet, to Vormir?