原因出在C盘存档文件下的ActiveUserPlayerUnits.cfg文件
注意 应当修改最新保存的文件夹下的
用记事本打开ActiveUserPlayerUnits.cfg找到这一栏
UserPlayerUnit 1.Compartment 【7或8，分别对应艉炮和艏炮】.CrewMemberSlotAdditionalRepository
仅需要把其中的 【AdditionalRepository】这段字去掉，改为正常文件下的
UserPlayerUnit 1.Compartment 【7或8】.CrewMemberSlot 【注意保留后面接的1和2】
有两个槽位需要修改，分别对应炮长和炮手，两个槽位都需要修改
正确修改保存后进入游戏读档，甲板炮就可以正常指派船员操作了，应如下图所示
*建议修改在港口时的存档，出海后的存档本人没有修改过，坏档炸档概不负责
**修改前建议保存原文件备份

这是正常的未指派船员的艉甲板炮槽位
[UserPlayerUnit 1.Compartment 7.CrewMemberSlot 1]
ID=CrewMemberSlot_DGunC1
NameDisplayable=Deck Gun Crew
Type=Crewman
IDLinkCrewMemberLoaded=NULL
WatchCrewMemberSlot3D=WM2@slot_M02
BattleStationsCrewMemberSlot3D=WM2@slot_M02
WatchAccessoriesForAdding3DObjects=NULL
WatchAccessoriesForSubtracting3DObjects=NULL
BattleAccessoriesForAdding3DObjects=NULL
BattleAccessoriesForSubtracting3DObjects=NULL
[UserPlayerUnit 1.Compartment 7.CrewMemberSlot 2]
ID=CrewMemberSlot_DGunL
NameDisplayable=Deck Gun Leader
Type=Leader
IDLinkCrewMemberLoaded=NULL
WatchCrewMemberSlot3D=WM1@slot_M02
BattleStationsCrewMemberSlot3D=WM1@slot_M02
WatchAccessoriesForAdding3DObjects=NULL
WatchAccessoriesForSubtracting3DObjects=NULL
BattleAccessoriesForAdding3DObjects=NULL
BattleAccessoriesForSubtracting3DObjects=NULL
==========================================
这是正常的未指派船员的艏甲板炮槽位
[UserPlayerUnit 1.Compartment 8.CrewMemberSlot 1]
ID=CrewMemberSlot_DGun2L
NameDisplayable=Deck Gun Crew
Type=Crewman
IDLinkCrewMemberLoaded=CPOGuns
WatchCrewMemberSlot3D=WM1@slot_M01
BattleStationsCrewMemberSlot3D=WM1@slot_M01
WatchAccessoriesForAdding3DObjects=NULL
WatchAccessoriesForSubtracting3DObjects=NULL
BattleAccessoriesForAdding3DObjects=NULL
BattleAccessoriesForSubtracting3DObjects=NULL
[UserPlayerUnit 1.Compartment 8.CrewMemberSlot 2]
ID=CrewMemberSlot_DGun2C1
NameDisplayable=Deck Gun Crew
Type=Crewman
IDLinkCrewMemberLoaded=CPOGuns
WatchCrewMemberSlot3D=WM2@slot_M01
BattleStationsCrewMemberSlot3D=WM2@slot_M01
WatchAccessoriesForAdding3DObjects=NULL
WatchAccessoriesForSubtracting3DObjects=NULL
BattleAccessoriesForAdding3DObjects=NULL
BattleAccessoriesForSubtracting3DObjects=NULL

谢谢留下教程，真是解了燃眉之急。

板凳队员报道参加学习

看到有人也在研究甲板炮，补充一下
甲板炮和高射炮的属性可以使用S3D修改游戏根目录/Data/Library/USSubParts下对应武器的sim文件内wpn_cannon栏下的对应物品属性属性AAGun或Cannon来转换，比如Fotrs有两种40mm高炮和一种20mm甲板炮可以将他们的属性转换使40mm炮自动对海射击或fotrs自带20mm甲板炮对空射击