My thoughts are that if we increase the cost of submarines again, we need to give them something unique. For instance, tanks cannot blow up factories, even though it was one of their major roles in combat - we reserve that right to bombers. Technically, infantry could send in sappers and destroy manufacturing facilities as well - heck, that was a major role for Paratroopers (drop in, destroy lines of communication, take out bridges, etc) so what we are looking at really isn’t historical accuracy, what we are looking at is game play mechanics.
Right now, submarines are rarely purchased (compared to previous games.) Destroyers have twice the defense ability of any submarine and can hit air units. Unlike submarines, destroyers can block enemy movement. Really, the only utility for submarines are convoy raids.
Also, keep in mind, surface ships did no convoy raids for most of the Alpha projects so we’re not really taking anything away, we’re just not adding the extra stuff Larry tossed on at the end. Also, I don’t think giving cruisers convoy damage of 1 or 1d6 really adds anything to the game.
The other thing that does not really seem to add to game play, that I think was just thrown on at the end of the Alpha projects, rolling dice for convoy damage. Taking that off and giving submarine significantly more punch (up to 6 damage per submarine - provided the convoy zone supports that much damage) really adds some more significance to a unit that is under represented (in my opinion) currently.
Of course, we do not want them to become TOO powerful, so to counter that we say all submarine commanders always dive for deep water when under attack and therefore cannot defend themselves (defense 0, Attack 2 or 3 with technology) and we raise the price to 8 IPC.
The idea, also, is to make the fleet costs more expensive over all. Carriers went down in price, as I listed them, but I also made them weaker (1 hit to sink, defend at 1 instead of 2) since their main goal is to bring planes into combat. Battleships and destroyers are 2 IPC more expensive, but cruisers got AA Guns. The idea here is to get more cruisers on the board without losing the destroyer utilities of anti-submarine and picket ship status, as well as to drive the cost of fleets up a bit (and when you have Japan and the US making a combined 150+ IPC a round, a slightly more costly fleet isn’t to unexpected in my mind.)
And yes, a submarine or two would be sufficient to reduce a convoy zone to debris. I’m not saying surface warships, aircraft and troops did not conduct economic warfare against the enemy. But in terms of game play, I don’t think it is effective to park 5 loaded aircraft carriers off the coast of Italy to convoy raid. If they are there, odds are good, they are there to protect the transports from the Luftwaffe and are probably not out and about looking for private yachts that have been pressed into service to smuggle in oil from Jordan.
As far as aircraft go, I was thinking of going back to just SBR. Send in the bombers, if they live GREAT! roll damage, if they don’t well, sucks to be you. I don’t really have a problem with interceptors and escorts, I just think it really slows down the game because now you have to wait for interceptor orders on every SBR run (virtually…) Yes, you need to wait for scrambles for coastal naval battles, and that slows things down as well, but - at least in my games - SBRs happen way more often than naval engagements off the coast of anywhere…(short of the Sea of Japan, LA Harbor, Philippines, England or Italian coasts I don’t see scrambles being an issue.) In fact, I think it would be better to declare what units are flying Cover Air Patrol and do away with waiting for scramble orders altogether - planes are on CAP or not on CAP and the attacker knows for sure what is there.
As for strategic bombers with no defense ability: when was the last time you heard General Smith scream at his lieutenant for failing to scramble the bombers to defend the airbase against attack? If anything, they try and get the bombers in hangers or at least spread out so they are not juicy targets, but B-17s were not really known for their dogfighting abilities, right? So give the fighter ATT 2, DEF 4 and the tactical bomber ATT 4, DEF 2 and have them both be 10 IPC units. For example.