Ive been thinking about this for a bit, how in SHIV can we not rewrite history if the ships we sink do not respawn? Take for example the Japanese Battleship Yamoto. If for example we manage to find her and sink her prior to 1944 how would she have participated in the battle of
Leyte Gulf and
Samar, during which she first fired her main guns in anger.
This is just one ship though, how about aircraft carriers or other types of warship.
Has this ever been explained, or do these types of ships spawn only when they were in actual battle on specified dates as history dictates?