After lots of wars going on [3-4 Wars, Florida, USMN, and a commie, a possible rebellion], Myst decides to protect its people by making an indestructible force field. When you try to go in, it will be like a blue, transparent, wall. When an enemy attacks the force field will open and shoot MBPs and take it down. If that does not work the force field is activated. The force field is also activated in default. When an ally comes, Myst sends rockets to varify and when it checks out, they let them in and de activate the force field, then they activate. To make/deactivate/activate it needs a big antenna in Myst. there are 2 modes in antenna, on, or off.
This is not PU this is Mystium RP
