As with the three previous relic-related achievements in COD: Ghosts ("
Throttled Escape," "
Throttled Survival," and "
Upping the Ante"), the "Twice the Fun" achievement can be unlocked by playing the Awakening map normally with no relics, dropping out of the game before starting the "
timer," assigning two relics, coming back into the game with those two relics "on," and successfully completing the match.
FLYN NE WEATHER,
BeSlayed, and
BOOTHY 83's respective solutions for the three other relic-related achievements describe the same course of action which I have described above.