Different models for animations

Unity Engine
1

Hey, I’m a bit confused.
So lets say that I have 3 models that each have their own animation. There is A_Run.fbx, B_Run.fbx, and C_Run.fbx. They are the same character, just slightly differed running animations.

I have a script on the player, that says there are 3 weapon types, A, B, and C. Each has their own corresponding animation, as seen above.

What I want to happen:

function Update()
{
  if(moving)
{
  play running animation. ( A_run.fbx, B_run, etc )
}

}

if(Weapon type == 'A')
{

     use the A_Run.fbx for running animation

}

if(Weapon type == 'B')
{

     use the B_Run.fbx for running animation

}

How would I achieve this?

2 
animation.crossfade("someanimationnamehere");

Also for example you could declare:

public AnimationClip animationA;
public AnimationClip animationB;
public AnimationCLip animationC;

and then assign the animation clips to those variables in the editor and then do this:

animation.crossfade(animationA.name);