HereticOS MR war simulator is a target version of HereticOS virtual reality lab. The main goal of the lab is to do technical verification for the development of Metaverse social experience such as simulating large-scale online war. Thanks to the breakthrough of HereticOS network basic technology, HereticOS Mr Lab for war simulator can realize the real-time online interaction of the largest 100000 online players on same server and screen . The goal is that the world in one server and world is in same screen. Due to the technical and cost constraints of Moore's law, the network war experience of our laboratory can be the only experience in the world in the next 30 years, so it will be updated, developed and maintained for a long time.