You read the sentence, and is one of the illogical things happened in Warship Battle world. This is spotted in Episode 60 to 63, and in several hidden missions, this happened in a mission where the player must destroy naval mines. If you use a ship that use guns, is more easier. But using missiles as main guns is difficult, having aircrafts on board will help to take care this problem.
And here is a college image of this illogical things in Warship Battle Part 1 :
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Super Independence : " Oh come on, really ?! Is the enemy's minelayer ship and crew didn't read the manual ? Jeez... "