Hardcore Mode Trophy
Complete all the game missions in Hardcore Mode.
Hardcore mode is the middle difficulty level, represented by the blue shield with the skull in it. Enemies normally spawn as slightly higher powered variants with more heavy weapons earlier. They also deal a bit more damage, but other than that there isn’t very much different from Normal difficulty.
To earn this trophy you must finish all 8 regular missions (green signs) and all 5 bonus missions (blue signs) on Hardcore difficulty. The trophy will be awarded on the score screen after you have finished all the levels on this difficulty.