Battlestations: Midway/Crucial Cargo: Difference between revisions

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I just beat this level and fulfilled ALL objectives. w00t.
(I just beat this level and fulfilled ALL objectives. w00t.)
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This mission is easy to win at, but difficult to fully beat. Despite the fact that you have over 30 torpedoes, even if you have 100% accuracy with all your torpedoes you cannot sink the entire convoy, the two cruisers, and the two escorting destroyers with all of them.
This mission is easy to win at, but difficult to fully beat. Despite the fact that you have over 30 torpedoes, even if you have 100% accuracy with all your torpedoes you cannot sink the entire convoy, the two cruisers, and the two escorting destroyers with all of them.


The challenge is made even more complicated by the presence of PT boats, which are too shallow for you to torpedo. Additionally, once you sink all the enemy ships, enemy planes with depth charges start harassing you, so this challenge mission's hidden objectives are extremely difficult.
The challenge is made even more complicated by the presence of PT boats, which are too shallow for you to torpedo. When surfaced they can hit you with their main cannon, and while submerged they can hit you with depth charges.


==Approaching the Convoy==
==Approaching the Convoy==
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Once the destroyer is dealt with, raise your periscope and look around. The computer will notify you once you've spotted a mission critical target and it will remain under a gold objective bracket for the duration of the mission.
Once the destroyer is dealt with, raise your periscope and look around. The computer will notify you once you've spotted a mission critical target and it will remain under a gold objective bracket for the duration of the mission.


Once you're in position, fall in trail with the two cruisers. They are positioned in front of the ship, and the heavy cruiser is a larger easier target and is in front, so head for that one first. It takes all four torpedoes to send it down. It will speed up once it spots your torpedoes coming, so fire as close as you can. Also watch for another destroyer - use the tactical map to keep track of enemy movements.
Once you're in position, fall in trail with the ''Mikuma'', the heavy cruiser. Send four torpedoes into it in order to send it to the bottom.
[[ Image:BSM CCargo MikumaDown.PNG|right|thumb|The ''Mikuma'' goes down.]]
[[ Image:BSM CCargo MikumaDown.PNG|right|thumb|The ''Mikuma'' goes down.]]
Sailing along the port side of the convoy is the light cruiser ''Kitakami''. It takes about three or four torpedo hits to sink the light cruiser. Once this ship is done, smack the destroyer behind you with your rear torpedo launchers before surfacing for some air.
Sailing along the port side of the convoy is the light cruiser ''Kitakami''. It takes about three or four torpedo hits to sink the ''Kitakami'', the light cruiser. Once that's done all that's left is for you to torpedo the ''Asagiri'' (assuming you haven't shot it already with your rear torpedo tubes) and you've sunk all the Japanese military units - except the PT boats. While it is possible to surface and remove the enemy PTs with your deck gun, it is not recommended - the Japanese model have artillery pieces that can strike a submerged submarine down quickly.
[[ Image:BSM CCargo TroopshipHit.PNG|left|thumb|Smack the cargo ships to end the mission.]]
[[ Image:BSM CCargo TroopshipHit.PNG|left|thumb|Ensure that you sink the troop transports with torpedoes. Unlike the tankers and the cargo ships, troop transports' cargo containers will not catch on fire as easily. They also sport a deck gun, something the other ships lack.]]
Use the merchant ships as cover to hide from the enemy warships, if they're still around. The enemy destroyers in particular have to get on top of you, and you can sail under a cargo ship and force the enemy to come about and take the long way.
The trick is to be patient and to use depth level 4 liberally. If there is any remote sign of a unit (especially a PT) coming to depth charge you, crash to depth level 4 regardless of circumstances.


The mission ends when the two cargo ships are sunk, but if you want the secret objective, you have to sink the whole convoy. Unfortunately, you don't have enough torpedoes to sink everything. Unfortunately, therefore, you must rely on your deck gun. Aim for the cargo containers and do your best to arc shots on top of them to send them to the bottom. Your machine gun can try and take potshots against the enemy PT boats, but ultimately it won't do much.  
One trick that has been observed is that, from crush depth, the submarine rises extremely slowly to torpedo depth. However, if you order the sub to surface instead, you will rise much faster. When at crush depth, try ordering your sub to the surface, then order torpedo depth once you're already at it. You'll have a much easier time torpedoing at close range - and staying at crush depth for longer periods.
 
Do not even consider surfacing for air until all of the following criteria have been fulfilled:
*The two cruisers - the ''Mikuma'' and the ''Kitakami'' - have been sunk.
*The two destroyers - the ''Yuguri'' and the ''Asagiri'' - have been sunk.
*The two troop transports (see left) have been sunk.
*The Gyoraitei PT boats no closer than 0.7 nautical miles (or, about 3/4 of the radius of your sonar).
 
The mission ends when the two cargo ships are sunk, but if you want the secret objective, you have to sink the whole convoy. Unfortunately, you don't have enough torpedoes to sink everything. Unfortunately, therefore, you must rely on your deck gun. Aim for the cargo containers and do your best to arc shots on top of them to send them to the bottom. Your machine gun can try and take potshots against the enemy PT boats, but be wary of their artillery.


Once you've removed both critical cargo ships, the mission is complete.
Once you've removed both critical cargo ships, the mission is complete.
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