Step One: Turn off FXAA...
You'll find this setting in-game. It's a technology created for budget oriented systems, and it makes the game look like a blurry mess. It's time to get your moneys worth with some good ol' fashion transparency AA.
Step Two: Enable Transparency Anti Aliasing
Here's the hard part... It's time to put that MIT education to work. Go into your control panel, and navigate the the page shown here. As you can see, I've opted for multisampling. You dual 680 people can give supersampling a shot (I've been informed supersampling TRSAA does not work in BF3, you will have to stick to multisampling). You don't want that $1k investment to get bored, right?

That's really all it is. Easy as cake... or pie... or some other delicious desert, and well worth the little effort.
Give it a shot!
edit: you will want to mix this with some MSAA, all transparency AA does is remove jaggies from alpha textures (grass/trees/fences/etc)
Screens on Page 2
You'll find this setting in-game. It's a technology created for budget oriented systems, and it makes the game look like a blurry mess. It's time to get your moneys worth with some good ol' fashion transparency AA.
Step Two: Enable Transparency Anti Aliasing
Here's the hard part... It's time to put that MIT education to work. Go into your control panel, and navigate the the page shown here. As you can see, I've opted for multisampling. You dual 680 people can give supersampling a shot (I've been informed supersampling TRSAA does not work in BF3, you will have to stick to multisampling). You don't want that $1k investment to get bored, right?
That's really all it is. Easy as cake... or pie... or some other delicious desert, and well worth the little effort.

Give it a shot!
edit: you will want to mix this with some MSAA, all transparency AA does is remove jaggies from alpha textures (grass/trees/fences/etc)
Screens on Page 2