Besides the common scoreboard and map-change crashing, which for me did not improve at all from beta 1, I also get crashing when attempting to join a server for the first time after booting the game. It only crashes on highly populated servers, and only the first join. What I figured out to do to avoid it was to load an empty server first, exit it, then join the more populated one. Perhaps this is something to do with too many things to load at once and joining an empty server lessens some of the load, not sure just taking a guess at it.