Talk:Summer 2014 Event/@comment-113.162.147.91-20140719142243/@comment-87.147.14.188-20140719165307

I wouldn't call an air-field soft, but yes, San-shiki and only San-shiki are effective against them.

That's why you can't replace them with AA-guns. In other terms, all guns with AA-stat contribute to AA anyway, which makes AA guns pretty useless currently.