When you begin your career in Sniper Elite: Resistance, you can hop into almost any mode, whether it be the level-based campaign or the competitive multiplayer. The new Propaganda mode, however, is locked off, and you're going to have to do some work to unlock it. This mode challenges you to try to kill as many enemies as quickly as possible with a set loadout, making it an ideal test of skill once you have some sniping hours logged...
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Where to find Sniper Elite: Resistance's propaganda posters to unlock Propaganda mode
Source: PC Gamer (opens in a new tab)