FPS enjoyers, which was the greatest era? (and why)

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Since I haven't seen anyone praise it yet, the 2010s had some bangers as well; Halo Reach, Doom 2016, Titanfall 2, Bioshock 2 and Infinite, Wolfenstein the New Order + Old Blood, Bulletstorm, Battlefield 1, Black Ops 1 + 2, Shadow Warrior...