Is this your first unit? Amazing! I think this is great.
(Very) minor points of constructive criticism:
(1) The spear seems to wiggle in an odd way as he moves his hand during the Fidget. Is he waggling his wrist or something here?
(2) The Attack B seems identical to the Attack A except that he doesn't step forward. I'd say that if you're going to have two attacks you might as well make them a bit different, although with a spear it's hard to know what to do other than have him jab it.
(3) The Defend is a good idea, but the frame rate is too slow - it looks a bit jerky. If you want him to move that slowly in this animation you should probably have more animation frames so it's a bit smoother.
(4) In the Victory, he should start in the pose that comes at the end of Fortify, and end in the Default pose. So since he moves his feet in the Fortify, he should move them back during the Victory. Also, I think this animation would be much better if he moved his body during the celebration - twist a bit or something - otherwise he looks a bit robotic. As a general rule, pretty much all movements - even if it seems to be just the arm moving, as here - should be accompanied by hip/abdomen/chest/neck movements (or at least some of them, at least a little bit). It adds life to the figure.
These are really minor quibbles though. This is a really good unit and I look forward to seeing more from you!