I am not quite sure what I did but outside of the editor nothing cast shadows on my map and anti aliasing seems to be non existent, I did change some stuff in postfx but I did revert it.
Your level may have some wrong setting somewhere (perhaps in the 'levelinfo' object. Hard to say without having the map by hand. Antialiasing seems to be on in both of your pictures by the way, just that the missing shadows makes the shimmering a bit more visible.
Whoa! I've had lighting issues like this from editor to game but that always did it. Also pssm shadow split (terrain last split) settings on the sunsky attributes. Sorry this happened to you man
Thanks for bringing up the sunsky object, while it wasn't the pssm shadow split setting it turned out to actually be an issue with the value I entered into the log weight setting, A value equal to or greater then .999 seemingly gets rounded to 1 which breaks shadows, for some reason .999 wasn't a value that got rounded in the editor but did while in play mode.
Excellent! I was actually going to write that, but my phone made me retype each word four times and I gave up! I find .98 works best for me. .99 is very harsh, less than .98 is too soft =D Good stuff mang!