youre not using the entire animation, just the hands when youre doing the blend and the animation files are not very big at all, it doesnt really seem like you’d gain much for the effort to be honest
but i would imagine if you just had a hand you animated, targeted the necessary bones properly, it should work… that has me wondering though… in the part of your script handling the action of firing the gun, would it be possible to script a rotation of the index finger bone when firing and not even need a new animation at all?.. realistically youre just rotating 1-2 bones
so i did some looking around and it would seem that when youre in your animation blueprint setting up the animation, instead of using an actual animation you could configure a “apply a percentage of rotation” node under skeletal controls and that should bend your index finger when firing