Animation for existing model

Animation for existing model

Hi, I really love the Zombie Survivor Model by thehumbug,  here's the link - http://opengameart.org/content/zombie-survivor

 

Is anyone able to animate it for me as I tried and it turns out I am so so bad at animating I could hardly work it out.

I would love animations such as,

walking, walking backwards, running, running backwards, shooting, die.

 

And If any is so so so generous I would love those animations with a hand gun instead.

 

THANKS heaps in advance!!!