Fics like Creeps from the deep

It has been several years since the defeat of ADVENT and the earth is finally at some semblance of peace. Strange Occurrences begin to plague the remaining civilizations of humanity and aliens alike as something sinister brews beneath the ocean's surface waiting to strike without mercy. Everything rests on the collective shoulders of one squad and how well they can work together to stop the oncoming threat before it's too late or will the world drown in the depth?

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