The chaps over at HARDOCP have posted a tip for playing Battlefield 4 on Windows PC they came up with while putting the military shooter sequel through its paces for their technical evaluation. They encountered some odd results in the game's antialiasing, and have this preliminary tip for users looking to improve the game's visuals: We are hard at work testing BF4, and the first thing we discovered was that the textures did not seem up to par for a new Frostbite 3 engine game. We quickly found out that by turning the "Antialiasing Post" (inherently FXAA) graphics setting to "Off," fixed this problem. The textures were now much sharper, clearer, and the fidelity in the entire game was better.
Post AA seems to be adding blur over the entire image, even though it does reduce aliasing on everything. It is the nature of FXAA, but it seems apparently bad in BF4 according to our testing so far.
ps: looks like the single player isnt up to much
"a campaign that otherwise seems hellbent on throwing you forward, or down, or out of something — just about every chapter ends with your character getting tossed out of something at high speed and/or losing consciousness. Battlefield 4's campaign is a jumbled, minimally coherent collection of guided shooter clichés. It isn't just forgettable, it's consistently, often willfully stupid."
It follows the scheme i first noticed with deadspace 3 and then with tomb raider (collapsing walkway simulators)