I like many FPS games While others have some of the elements Halo has it all. Campaign, epic story and universe, MP or PVP is most balanced and most fun in Halo. Firefight and Spartan OP's offer a little extra to those who like the campaign and want more. Forge allows us to edit maps and game types. Notable mentions. Wolfenstien Doom Duke Nukem Quake Unreal tournament Goldeneye (n64 version only, reboot is shite) Turok 2 Timesplitters 2 Borderlands 2 Killzone 2 Titanfall