I have an animation for walking, an animation for walking with a gun and a transition animation. How can I go from the walk animation to the walk with gun going trough transition while keeping the legs sync and don't wait for the walk animation to finish. I though about making all animations with 2 layers, one for the upper body one for the lower, then mix when needed, but I don't know how to make that and I don't know if it's the best way.