Great animation here.
Okay, here's another deviation. The scene where Batman's line gets shot is a different scene, and it's actually Huntress who comes to his rescue. Batgirl is still in a wheelchair at this point. She's still Oracle, and she's the one who sends out an S.O.S. for anyone who might be in the area. When Huntress replies, Barbara says, "Uhh… is there anyone else nearby?"