Finished Debugging Minecraft Mission 4 in WashingtonHasFallen - get a peek at how a Not-gate works to create a hidden sliding door.
No new beta release update will come out until the Mission 5 updates are done. Shouldn't take to long hopefully, because there are only two or three reported bugs. The rest are navigational NPC's to help make the flow and time required to complete Mission 5 a little quicker. Mission 5 is honestly one of the more fun and surprising missions.