1) Oak can acquire his Last Stand I power at level 8.
2) Occasionally, when setting the port # (e.g. 6073) on the game creation screen (where you can enter name/password) the port # does not stay the same once the game has been created (6073 will turn to 0). I have a theory that this is a just a comp error, or a connection error, but I don't know for sure.
3) On the Lord Erebus achievement list, there is an achievement for creating vampirelings. I'm assuming this was meant to be Night Walkers, and just calling it a typo.