Talk:Prototype 35.6cm Triple Gun Mount/@comment-24481236-20140718084357/@comment-80.108.38.236-20140725175903

As for how to obtain: it's explicitly mentioned in the official tweet

月次作戦褒賞及び来月以降実装される新任務等で入手可能

Reward for the monthly operation AND the quest which will be updated next month. >> It's not clear what the "getsuji sakusen/monthly operation" means (probably event, though it may be another extra operation with monthly boss gauge regen), but I'm assuming there'll be a quest that comes with Haruna Kai Ni.