I'd say give it a try first, yourself. It'd be good practice if you have the time, that is. It shouldn't be much more difficult than trying to make him walk like you have.
One arm would need to swing out, holding a gun. After, it would have to bend at the elbow and raise the fun forward. Think along the lines of keyframes. You've got two major events there: 1) the arm swings out, 2) the gun gets raised upward. Give each of those two events three frames of animation, and figure out a start, middle, and end for each of them.
I hope that helps!
One arm would need to swing out, holding a gun. After, it would have to bend at the elbow and raise the fun forward. Think along the lines of keyframes. You've got two major events there: 1) the arm swings out, 2) the gun gets raised upward. Give each of those two events three frames of animation, and figure out a start, middle, and end for each of them.
I hope that helps!