Player's default animation playing over animation

I have an animation where it just makes the player hold the gun. The problem is that when it plays that animation, the player’s default animation plays along with it giving it a weird bobbing effect. Animation priority is set to action. So I’m kinda stumped.
https://streamable.com/kme0ja

It’s because the walking animation is moving the torso that also moves with the arm.

Ohh, so would there be a way to change the player’s anims?

Yeah it still is possible to by making a custom animation script.