Lobby server re-registering after game end.
Start a local game, lobby registering must be enabled in the options. If the lobby registration fails (maybe even if it is successful, haven't had the luck to actually get the server into the lobby yet though) you'll be notified that a retry will be executed in 2 minutes. Now, join any other server you may fancy. The client will (try to?) register the initially created server in the lobby.
M72 Law startup sound on the Barrett
A simple one; the Law's startup sound will play when you initiate a shot on the Barrett. Who knows, this might be on purpose; but if this is the case I'd rather have two different wav files for greater modability.