Under Hayward's orders, they use a drone empowered by Maximoff to reactivate Vision. When she opens the hex to allow Westview's residents to escape, she inadvertently allows Hayward, the original Vision, and several S.W.O.R.D.
Following Hayward's instructions, they utilize a drone fueled by Maximoff to revive Vision.  During her opening of the hex to allow Westview residents to flee, she inadvertently lets Hayward, the original Vision, and several S.W.O.R.D. agents escape.