From: Winnipeg, MB
Kimmel was not given key information that might have changed his preparation level. But if he had sortied the fleet he likely would have lost a lot more ships!
I believe that you or confusing the game abilities of IJN torpedo bombers with their real life abilities. At Pearl Harbor the 40 torpedo bombers scored only about 50% of the time against targets which were un-moving and not firing at them. Over the course of the 4 carrier battles of 1942 the torpedo bombers of the KB scored only 7 torpedo hits on capital ships (Lexington, Yorktown and Hornet) with a two more on DDs. That is way less than the rates that the Kates generally achieve in the game (In game at PH they generally score with about 5/6th of however many torpedoes they carry - there are too many variables for measurement to be fruitful vis a vis "at-sea" attacks).
A standing CAP and scrambling fighters over PH or the fleet may also impacted raiders' attack effectiveness. Same goes for having AA guns manned and ready. I have experimented with NO HISTORICAL FIRST TURN/SURPRISE purposefully setting up the US BB fleet to ambush the KB in a night battle, the subs all ambush the KB, the KBs raid being met by 100 or so airborne CAP and every bomber set to Naval Attack (incl Enterprise group) at optimum altitude (escorted by every thing else that is flyable). The BBs score a couple of hits on various IJN ships (not preventing airops), the raid on PH sinks a bunch of auxiliaries, the bombers get 1-2 hits on IJN ships. Even with everything set as the worst possible situation for the IJN there is little loss. I am not convinced that the game is a good predictor of how the battle would have panned out had the US been more prepared at PH.
I was thinking of the Nells sinking PoW and Repulse, and the long range torpedo hits on several ships in Adm. Doorman's ABDA TF at the battle of Java Sea.
And I think you overlooked the hits on Hermes, Cornwall and Dorsetshire.
As for the US fleet, since there was no Intel on the whereabouts of the KB there is little likelihood they would have charged north to engage, but if KB found PH empty on the day it would have still struck the airfields and probably the oil tanks that made operations at PH possible. Then KB would have started searching for the US fleet, likely found them by day two and moved close enough for at least two air strikes per plane. The old BBs would not have a shallow harbour bottom to save them. The faster ships might have dodged most of the torps but not the bombs, and there would be no firefighting help from the port. I think US losses would have been heavy and KB would have lost a good chunk of its aircraft.
No matter how bad a situation is, you can always make it worse. - Chris Hadfield : An Astronaut's Guide To Life On Earth