Quick sub question

[Battlingmaxo]

just reread aa50 rules and noticed that subs cannot submerge with enemy destroyer present. this is different from previous
versions. what was the impetus for the rule change?

[Krieghund]

This rule was also in Revised.  It’s not new.

[Battlingmaxo]

Don’t have revised or dday(have everything else) ….hence my ignorance…sorry