I got about 2x FPS increase and less stuttering with the latest update.. Perfectly playable now, smooth even fighting 20 vs. 20 nap of the earth over a village and airfield with objects and AAA.
Phenom II 1055t 6-core
4 gb 1666mhz ddr3
palit gtx 460 sonic 2gb
Thanks Ilya & the team!
edit: settings are 1680 x 1050, no AA, everything high except buildings low trees medium and no roads.