Hello everyone, i would like some of you to recommend me fps games which have a big fanbase and are difficult

I loved the original Farlight 84. It was beautiful, innovative, demanding and a pleasure to play. And, other than most other fps, there was an interesting cast of complex characters, and there were jetpacks, which led to fast, intense matches. Farlight 84 was veryhard to master, but every improvement felt so rewarding. Everybody loved the game, and the community was healthy and growing... Speaking of myself, i spent enough time with the game, to eventually reach the highest ingame-rank, and become part of a tournament clan...