I noticed that the other entries were more reminiscent of modern soldiers than anything approaching sci-fi. I didn't want to stray too far, however, from the established genre, so I made a sort of compromise. Also I don't have a white torso that wouldn't require decalling or a red torso that didn't have any. I couldn't choose between the white hat in the main pic and the one you see here, so I used both. The white one is a protective helmet, and the tan one hides the fact that he's bald(as all LEGOŽ minifigs are, although some wear wigs)
The scarf is protecting him from the wind, snow, and cold.
Note: This figure is not my entry for the contest. Unless, of course, I'm allowed submit them in as a joint entry.
Here we have a field commander. Despite what the name might suggest, it really isn't that high of a rank. All it means is that he gets to dress more freely(which really isn't smart in this weather), use his own weapons and stay closer to the back during combat.