Did I understand correctly... ?
To reorganize the list of ships/ tanks/vehicles, it's in chief.ini that it happens!
Note: to reorganize the list of the same objects but stationary it's in the stationary.ini!
How does it work?
In your chief.ini you will find (example) :
[Ships]
moveType SHIP
G5 ships.Ship$G5 1 icons/shipDestroyer.mat
MO4 ships.Ship$MO4 1 icons/shipDestroyer.mat
USSBBGeneric ships.Ship$USSBBGeneric 1 icons/shipDestroyer.mat
USSLexingtonCV2 ships.Ship$USSLexingtonCV2 1 icons/shipDestroyer.mat
Destroyer_USSR_Type7 ships.Ship$Destroyer_USSR_Type7 1 icons/shipDestroyer.mat
Aurora ships.Ship$Aurora 1 icons/shipDestroyer.mat
USSSaratogaCV3 ships.Ship$USSSaratogaCV3 1 icons/shipDestroyer.mat
USSIndianapolisCA35 ships.Ship$USSIndianapolisCA35 1 icons/shipDestroyer.mat
Marat ships.Ship$Marat 1 icons/shipDestroyer.mat
USSCVGeneric ships.Ship$USSCVGeneric 1 icons/shipDestroyer.mat
You are free to reorganise them like this (example) :
[Ships]
moveType SHIP
//--- URSS ---
Aurora ships.Ship$Aurora 1 icons/shipDestroyer.mat
Destroyer_USSR_Type7 ships.Ship$Destroyer_USSR_Type7 1 icons/shipDestroyer.mat
G5 ships.Ship$G5 1 icons/shipDestroyer.mat
Marat ships.Ship$Marat 1 icons/shipDestroyer.mat
MO4 ships.Ship$MO4 1 icons/shipDestroyer.mat
//--- USA ---
USSLexingtonCV2 ships.Ship$USSLexingtonCV2 1 icons/shipDestroyer.mat
USSSaratogaCV3 ships.Ship$USSSaratogaCV3 1 icons/shipDestroyer.mat
USSCVGeneric ships.Ship$USSCVGeneric 1 icons/shipDestroyer.mat
USSBBGeneric ships.Ship$USSBBGeneric 1 icons/shipDestroyer.mat
USSIndianapolisCA35 ships.Ship$USSIndianapolisCA35 1 icons/shipDestroyer.mat
That's it! They will now appear in this order...
There is another solution but it is more complex to set up...
Is this what you wanted?