Don't Strain Your Metaphors

Don't Strain Your Metaphors is an achievement in Halo: The Master Chief Collection. It is unlocked by beating the 14,000 point par score on the level Uplift Reserve. The achievement is worth 10 Gamerscore. Though it can theoretically be unlocked on any difficulty, more points are awarded in campaign scoring when playing on higher difficulties.

Tips
Players can earn significant points by destroying unoccupied Covenant vehicles as the game does not differentiate between piloted and empty vehicles; Halo 3 and Halo 3: ODST are the only games in the Master Chief Collection with this campaign scoring quirk.

Trivia
The name of the achievement is a reference to a line spoken in the level by Chips Dubbo, who tells the Wounded Marine, "Careful. I think you just strained a metaphor."