The assets in that level are very sloppily made. Poly count is quite low on everything besides characters/weapons, textures can go from fantastic with fine detail to amorphous blobs, and the water looks about as good as Halo 3's, but the way it's rendered in the engine along with great art direction (the execution is the issue imo) and vast vistas makes me excited about the potential if they put in the same care they put in to Mirrors Edge. It's in serious need of a solution for reflections though, the cubemap system they're using doesn't cut it anymore and destroys a lot of the visual potential for this map in particular with all the windows and tall buildings.
BF4 does support MSAA, but you can always downsample.
Related, I saw BF4 has a resolution slider which I assume functions in the same way as Planetside 2's render quality for changing the resolution independent of the UI, has anyone attempted to use it for downsampling?