Talk:World 5/@comment-26355143-20171221142728/@comment-27633922-20171221150859

If you're not using Support Expeditions, then start using them.

Also, use T3AS/T4PS/ASDIC series+T3DCP+T2DP on Yuubari to allow your fleet to use Line Ahead on the Boss node even if a sub appears (the only thing that can screw you at that point would be Red T, otherwise RNG is just trolling you).