SteamWorld Heist II

For this trophy, look for a submarine that will fire torpedoes at you underwater.
After receiving the shield, head to the northwest of Glacier Bay, where several enemy submarines will be floating at the same time.
In the difficulty settings you can adjust the fatness of the enemies and the damage they inflict.
After a few tries, you will be able to position the side so that the torpedo will bounce back and destroy the enemy.
You can't get it with surface ships.