Board Thread:Game Updates/@comment-25730832-20190625022209/@comment-24930367-20190625105052

I'll try to give a likely explanation about that.

It's because, with the exception of Artillery "Nose Guns" Imp, every installation in Spring 2019 takes full, 2.5x firepower damage, from Type 3 Shell.

So they wanted you to RNG your way through with just Type 3, and hoping that land base support bombed Nose Guns to death.