Also, we got a chance to see the newly added "Command Posts". Both Yellow and Red have a netted area at a specific location along the perimeter of the DMZ. It sounds like rockets wont be able to destroy them but that fire can be exchanged between those inside the fort and those outside. There are a few slits cut in the netting at different places along the fort that would work well for defenders to stick out their barrels and let an approaching force have it.
Hope to see everyone out there in 5 days (can you believe it?!).