Gabriel's Impact On The Ultrakill Storyline
Let's start in an almost consecutive order of information we learn about him. While it could theoretically be something along the lines of him helping v1, it makes more sense that his big sendoff will. He literally fights the council and wins, defying god's will for his own. In the flesh], where he first taunts v1 telling it to turn back. Gabriel will have one last big moment before his story ultimately ends.
Gabriel will have one last big moment before his story ultimately ends. Consider what gabriel has done to hell. Gabriel, judge of hell is the third major boss in ultrakill and the final boss of act i. While it could theoretically be something along the lines of him helping v1, it makes more sense that his big sendoff will. However, gabriel's story resembles lucifer's way more in act ii. He literally fights the council and wins, defying god's will for his own.