The fluidity of the animation is amazing however for what you're trying to achieve which, I think is the combine trying to be stealthy I have a few pointers.
For one his right arm should be tucked in closer to his body to make him a smaller target. And two, he shouldn't sway back and forth so much when he's walking, he'd be more static with the way his upper body moves.
This is my first try animating in XSI mod tool, I usually use 3dsmax. I think the toughest part was remembering the hot-keys are totally different. Anyway, not my model or my rig, just my animation... yadda, yadda, yadda...
The fluidity of the animation is amazing however for what you're trying to achieve which, I think is the combine trying to be stealthy I have a few pointers.
For one his right arm should be tucked in closer to his body to make him a smaller target. And two, he shouldn't sway back and forth so much when he's walking, he'd be more static with the way his upper body moves.