ORIGINAL: bradfordkay
The whole Guadalcanal campaign was within torpedo carrying range of Rabaul, and yet I can only come up with information on that one attack on US shipping. Something must have held them back - it was a while before the Cactus Air Force was strong enough to be a real deterrent (remember, they did keep coming to Lunga to bomb the airfield).
They flew and they made their attacks, it's just that in real life it's harder to sink a torpedo into a moving ship than it is in WitP. Also, in real life those Bettys were flying from Malarial bases where everyone was beat from the disease. It was bad enough on the Americans with all their infrastructural support; worse luck still for the Japanese in all cases. So to keep those Bettys flying was the trick. On top of all that, before you can hit something you have to know where it is. At Guadacanal the Japanese were taken by surprise and didn't react until the next day. In WitP it's much less probable that a USN TF could sneak in there in like. Wonder why? [;)]
Anyway, it's not as if the USN parked a hundred ships off Lunga Roads every day. For long stretches the sound was clear of shipping and so there was nothing to detect or attack by the Japanese. They did, however, use their planes to bomb the Marines there, more or less constantly. Not to much effect though when all was taken into consideration. After even a few fighters arrived at Henderson Field the situation in the air started to inexorably, no matter how slowly, shift in favor of the Allies.
Finally, remember that while the Zero could reach Guadacnal it was a looooong flight and the crews had to be tired upon arrival. Once there, they only had a precious few minutes of air time over the target before being forced to return home. This was another huge advantage for the Allies, one which is, by the way, not modeled in WitP.




