Hearts of Iron IV

Hearts of Iron IV

Pearl Harbor Expansion: A VNR Submod
Riekopo 25 Feb, 2024 @ 12:32am
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I like the mod but there's room for improvement. One thing that bothers me is after I did the Pearl Harbor attack which takes a lot of time and effort, it did not tell me the results of the attack at all. I have no idea how many American ships were sunk or damaged or otherwise taken out of action.

I also have no idea if the "third wave" attack was a success or failure.
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MrPunk  [developer] 28 Feb, 2024 @ 1:02am 
Actually it's written in the news event. If the third wave succeeds, the text will mention "the base and OIL DEPOT of the Pacific Fleet" were damaged, otherwise it's just "the base of the Pacific Fleet".

As for the results, if the US is AI controlled, the loss of ships will always be historical, you can refer to Wikipedia or other historical sources.
Riekopo 7 Mar, 2024 @ 6:57pm 
Originally posted by MrPunk:
Actually it's written in the news event. If the third wave succeeds, the text will mention "the base and OIL DEPOT of the Pacific Fleet" were damaged, otherwise it's just "the base of the Pacific Fleet".

As for the results, if the US is AI controlled, the loss of ships will always be historical, you can refer to Wikipedia or other historical sources.

So what does the third wave attack actually do then? Other than the text line. HOI4 has no shore facilities or oil depots. Is there some reason the results of the attack aren't shown to the player? Is it supposed to be a mystery?

In real life only 3 of the ships (BB Arizona, BB Oklahoma, BB Utah) at Pearl Harbor were permanently destroyed. The rest were repaired, some very quickly. Pearl Harbor has a shallow port which allowed recovery of the sunk ships. 21 American ships were damaged or lost in the attack, of which all but 3 were repaired and returned to service.

BB Arizona total loss. sunk.
BB Oklahoma total loss. sunk.
BB West Virginia salvaged July 1944.
BB California salvaged Jan 1944. sunk.
BB Nevada salvaged Oct 1942.
BB Pennsylvania damaged slightly.
BB Tennessee salvaged Feb 1942 minor damage.
BB Maryland salvaged Feb 1942.
BB Utah total loss. (target ship)

Cruiser Helena salvaged Jan 1942.
Cruiser Raleigh salvaged Feb 1942.
Cruiser Honolulu light damage.

DD Cassin salvaged Feb 1944
DD Downes salvaged Nov 1943
DD Helm lightly damaged
DD Shaw salvaged June 1942

Oglala minelayer salvaged Feb 1944.
Curtiss seaplane tender salvaged Jan 1942

188 aircraft destroyed
159 aircraft damaged
2,008 sailors killed
109 Marines killed
208 soldiers killed

Intensive salvage operations continued for another year, a total of some 20,000 man-hours under water. Arizona and the target ship Utah were too heavily damaged for salvage and remain where they were sunk. Oklahoma, while successfully raised, was never repaired and capsized while under tow to the mainland in 1947. The Nevada proved particularly difficult to raise and repair.

Japan losses: Twenty nine aircraft were lost total, nine in the first wave (three fighters, one dive bomber, and five torpedo bombers) and 20 in the second (six fighters and fourteen dive bombers) with another 74 damaged by anti-aircraft fire from the ground. Five midget Submarines were lost.

Husband Kimmel US admiral is missing from the game.
MrPunk  [developer] 7 Mar, 2024 @ 7:10pm 
Originally posted by Riekopo:
Originally posted by MrPunk:
Actually it's written in the news event. If the third wave succeeds, the text will mention "the base and OIL DEPOT of the Pacific Fleet" were damaged, otherwise it's just "the base of the Pacific Fleet".

As for the results, if the US is AI controlled, the loss of ships will always be historical, you can refer to Wikipedia or other historical sources.

So what does the third wave attack actually do then? Other than the text line. HOI4 has no shore facilities or oil depots. Is there some reason the results of the attack aren't shown to the player? Is it supposed to be a mystery?

In real life only 3 of the ships (BB Arizona, BB Oklahoma, BB Utah) at Pearl Harbor were permanently destroyed. The rest were repaired, some very quickly. Pearl Harbor has a shallow port which allowed recovery of the sunk ships. 21 American ships were damaged or lost in the attack, of which all but 3 were repaired and returned to service.

BB Arizona total loss. sunk.
BB Oklahoma total loss. sunk.
BB West Virginia salvaged July 1944.
BB California salvaged Jan 1944. sunk.
BB Nevada salvaged Oct 1942.
BB Pennsylvania damaged slightly.
BB Tennessee salvaged Feb 1942 minor damage.
BB Maryland salvaged Feb 1942.
BB Utah total loss. (target ship)

Cruiser Helena salvaged Jan 1942.
Cruiser Raleigh salvaged Feb 1942.
Cruiser Honolulu light damage.

DD Cassin salvaged Feb 1944
DD Downes salvaged Nov 1943
DD Helm lightly damaged
DD Shaw salvaged June 1942

Oglala minelayer salvaged Feb 1944.
Curtiss seaplane tender salvaged Jan 1942

188 aircraft destroyed
159 aircraft damaged
2,008 sailors killed
109 Marines killed
208 soldiers killed

Intensive salvage operations continued for another year, a total of some 20,000 man-hours under water. Arizona and the target ship Utah were too heavily damaged for salvage and remain where they were sunk. Oklahoma, while successfully raised, was never repaired and capsized while under tow to the mainland in 1947. The Nevada proved particularly difficult to raise and repair.

Japan losses: Twenty nine aircraft were lost total, nine in the first wave (three fighters, one dive bomber, and five torpedo bombers) and 20 in the second (six fighters and fourteen dive bombers) with another 74 damaged by anti-aircraft fire from the ground. Five midget Submarines were lost.

Husband Kimmel US admiral is missing from the game.
It will give the US a national idea if succeeds, Oil Depot Destroyed, greatly reduces its fleet's max range.
Last edited by MrPunk; 7 Mar, 2024 @ 7:10pm
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