I hope the next strip shows part of the boss battle.

Yes, the south path. Some say the middle works better, but that is one extra battle risky. I just remembered I have to do the quarterly quest on this map TWICE again. I just hope I can get a sixth submarine from current event for it. I-26, I-401 here I come.

Middle path is better as it's a guaranteed route to boss. With the south path, you're prone to getting off-routed, but I guess it beats getting the north route.

I remember, the trick of this map is long sortie battle. I realized it when starting quests for pfd using ise class bbv and chiyoda chitose. Put a lot of strong pre emptive strike on this map with one girl as aa unit, your sorties will be a smooth one for 4 battles, sometimes the enemies already wipeout before shelling phase started.

So, even if you go astray, with 4/5 s rank battles the morale points don't get reduce much when you return and ready for another strike