not at all difficult. it eliminates any notion of agility, at least vs lasers, particle accelerators, and meson guns. probably be no reason for any battleship to be above agility 2. casualty rates per shot vs meson weapons would leap so major fleet actions would be deadly single-shot affairs with few survivors. "round one, main battle. round two, mop-up." most noteworthily, depending on sensor rules, it would eliminate combat if one side were unwilling to participate, except in the most confined littoral regions. blockading a world, catching pirates, or stopping smugglers would become almost impossible without large numbers of opposing vessels.how about a ship combat scale measured in a few minutes maximum, with weapon ranges of hundreds of kilometres instead of light seconds?