From: Winnipeg, MB
Just a note on naval bombardment distances: if you are grinding down the defences and not landing, do NOT leave the bombardment distance set to 0.
I did that when I sent four of the old US BBs to bombard Saipan Naval Fortress. It was a disaster, even though the guns were too small to get armor penetrating hits, they did a ton of system and fire damage that put all 4 BBs in peril of sinking.
I tried again later using four more BBs and set the stand-off distance to 10. At night, range 10, little moon and no Japanese radar meant my BBs did their stuff with very few hits and practically no damage. Eventually the fortress was worn down enough by weeks of bombing/bombardment that the landings could go on without huge casualties. BBs and CAs were embedded with the amphib groups too, and suppressed the few remaining guns.
No matter how bad a situation is, you can always make it worse. - Chris Hadfield : An Astronaut's Guide To Life On Earth