※ 引述《cbr6000810 (爱我就包养我＃)》之铭言：
: 乳提~
: 有这么一说
: 军队的舰艇女人不能踏上否则此船必沉
: 那为什么潜舰猎杀令上面会有女兵?
On 29 April 2010, the Department of the Navy announced authorization of a policy change allowing women to begin serving on board navy submarines. The new policy and plan was set to begin with the integration of female Officers.
c.f. https://en.wikipedia.org/wiki/Women_in_the_United_States_Navy
简单讲美国已允许女性在潜艇服役，且已有实际服役的例子了。
这电影大概是想搭上这潮流。