Is there a mod that keeps enemy the same way when they are ally?

I'm talking specifically about the last fight. If you chose second option you get a lot of NPC as allies but they are as useful as a pair of sticks. But when you chose to fight them they destroy you. I feel like it's unfair, why I'm suffering either way? The archers are just skipping their turns and specific woman just stands there menacingly but doing nothing. Maybe any tips tho?