At this point, she has to wonder if forcing them to retreat might be the entire point: penning them in and wearing them down— though right now, they're already well on their way to the latter.

"Move forward! I'll try to cover you." And hopefully it means he won't be snared as he goes, leaving a path for her to teleport to his location and follow suit.

This time her shots are less focused in their assault, more scattered, distracting. It's as much as she can do to try and draw the attention of the mutated, former humans that swarm them, animated with an unfocused hunger.