Iron Sky: Invasion

Story related and cannot be missed. Chapter: 6.

This chapter is potentially the shortest of the entire game. You will be tasked with blowing open the hangar doors of the Götterdämmerung, flying inside and blowing up the helium reactor inside. If you don’t need to farm anything (and you shouldn’t at this point if you followed the roadmap), then this will most likely be your last trophy before platinum so you can rush through this trophy very quickly if desired, without destroying any other enemy. 

As soon as the mission loads up, scroll to the Götterdämmerung using  and then use  to select the hangar doors. It will be in a slightly orange font. Fire all your missiles and chaingun ammo to open them. Now quickly dart past any enemies that are guarding the entrance, remembering to use  to divert energy to your shields if needed, go inside and dodge through the tunnel, and destroy the helium reactor. The trophy will unlock shortly after, regardless of whether you turn back and escape or not.