If you can power a laser, all that windage error goes away.
Never forget shooting at a target in the ocean on our gun familiarization hop. Weird to shoot behind something as you fly past it to hit the target.
As with acoustics, refraction affects light.
Roads in deserts move about like stars near a camp fire.
Last high powered laser I saw was headed for sub comms.
Blue green for sea water transmission. A one square centimeter pulse burned a patch on a business card.
The capacitor feeding the discharge was water filled; about a cubic meter.