With the speed correction they've done part of what Peter Jackson did with "They Shall Not Grow Old" to make it more life like. Taking the time (and expense) to also colorize it would add another whole dimension to it so we could really see those people as they were which, except for the way they dress, isn't much different at all from folks now.

Gunnery, gunnery, gunnery.
Hit the target, all else is twaddle!