...The Harder They Fall

...The Harder They Fall is a trophy in Fallout 4.

Requirements
Kill 5 giant creatures. The only two enemies that count for this trophy are Super Mutant Behemoths and Mirelurk Queens.

If you are travelling with a companion, you must be the one to fire the killing shot in order for it to count towards the trophy.

Locations
Super Mutant Behemoths
 * Outside of Fort Strong.
 * West of Natick Banks.
 * West of the Suffolk County charter school.
 * South of Walden Pond at a playground.
 * There is the unique enemy named Swan who can be found at Swan's Pond.

Note: To get the trophy on PS4 you actually have to kill all five behemoths. Not Mirelurk Queens.

Possible Glitch: Random NPC's may kill the behemoth, leading to progress to the achievement.

Mirelurk Queens
 * At The Castle as part of the quest Taking Independence.
 * At the Murkwater construction site, must be defeated in order to use the area for settlement.
 * Spawns at Spectacle Island once throwing the circuit breaker.
 * At Nahant Chapel, nesting near the coast.