Ubisoft has released the 1.3 patch for Raven Shield. Fixes some bugs and in my case completely cleared up the (major) framerate issues I was having.
As a bit of bad news, the patch apparantly added a new bug where at random times everyone on the server gets stuck on the countdown. The only way to quit if this happens is through the console. It only happened to me once in a couple of hours of play so its not a huge deal.