Fix some problems found in the test and update errors caused by version problems, "Please delete all files of previous versions! Place new files!"
Try to make the characteristics of different factions more prominent, so that the basic infantry and grenadier weapons look different. Grenadiers are now more like elite infantry, with higher damage and health bonuses. I am currently trying to make air units have different characteristics. I referenced other people's modules. It seems that the air units between the various factions have different weapons. The next version will try to add the difference between ground weapons and air defense weapons for some mecha units, and may turn some mechas into air defense mechas.