Split-screen fps for xbox

So my buddy and I are looking for a good split-screen fps.We have played L4D, Borderlands and CoD : spec ops.

Fear 3, Halo 3, Halo ODST, Halo Reach. Tom Clancy games...

you'll love Halo Reach then, its 4 players via split-screen, and you all can go online at the same time which is a first for any franchisee

Please use the stickied recommendation thread.