ORIGINAL: Lowpe
AMCs are almost entirely worthless as raiders....they can't fight their way thru a paperbag, at least for me. Use your AMCs to shepherd oilers or amphibious invasions, or evacuations, or as almost an AP.
The perfect raider setup is two or three destroyers with an xak in reserve to provide fuel...the destroyers go to town on convoy, and can usually escape bigger threats with only a few hits. Use Glen equipped subs to be the eyes and ears around the target area. Plus the Allies really gotta wonder about how the destroyers got fuel.
The Oi and her sister ship make great raiders, with 40 torps each, if you didn't upgrade them. However, they have very little fuel on board and you need to overcome that obstacle.
Forgot to mention the Tone class is I think the most fuel efficient CA in the IJN, combined with 5 float planes, she makes a fearsome raider. Very, very fast too.
AMCs can sink merchants aplenty. Depending on crew experience and commanders, they can take on pre-war DDs as well, especially early on in the game: those AMCs have cruiser-size guns. Just a couple of hits will put a hurting on a DD.
As for a waiting game, well...








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