diff --git a/Network-Protocol.md b/Network-Protocol.md
index 46d5256..bc52861 100644
--- a/Network-Protocol.md
+++ b/Network-Protocol.md
@@ -20,13 +20,13 @@
 
 ## Connection Messages
 
-* `ACK`: acknowledge `CONNECT,CODE` command has the correct 4-digit code.
-* `NAK,REASON`: refuse to acknowledge `CONNECT,CODE` command, sends along an error code that explains why.
-  * `NAK,Code`: Code was wrong.
-  * `NAK,Full`: A VR player is already connected.
-* `HEART`: check connection activity, expects `BEAT` within `TBD` seconds.
+* `OK,MESSAGE...`: acknowledge `COMMAND` command was valid and has been handled.
+* `NOK,REASON,MESSAGE...`: refuse to acknowledge `CONNECT,CODE` command, sends along an error code that explains why.
+  * `NOK,UNAUTHORIZED_REQUEST`: No complete `CONNECT,CODE`->`OK,CONNECT,CODE` loop has been completed for this identity.
+  * `NOK,UNKNOWN_COMMAND`: Message type invalid.
+* `HEART`: check connection activity, expects `BEAT` within 3s.
 
 ## Gameplay Messages
 
 * `BEGIN`: Notify the client that the game has started.
-* `CONCLUSION,METHOD,MOTIVE,MURDERER`: Notify the client that the flatscreen player has selected a conclusion.
\ No newline at end of file
+* `CONCLUSION,METHOD,MOTIVE,MURDERER`: Notify the client that the flatscreen player has selected a conclusion.