Complete the following tasks to unlock PlayStation 4 trophy rewards.

Trophy	How to unlock	Type
Advanced Studies	Perform 1 kill with the Livens Projector	Bronze
Firefighter	Perform a melee kill on a Flametrooper Elite	Bronze
Flyswatter	Destroy 5 airplanes while in the Behemoth Airship L30	Bronze
Modern Technology	Perform 1 kill with the Broken Bottle	Bronze
Weapons of the Apocalypse	Perform a kill with all "Apocalypse" weapon variants	Gold