1. Supply Improvement

　　Supply Improvement increases supply’s attributes. Improvement consumes gold and has possibility to fail. Adding Memory Metal to increase possibility to succeed. The maximum level of a Supply will not go beyond commander’s level. 

2. Supply Modification

　　Supply Modification greatly increases supply’s attributes. Modification consumes multiple material; Successful Modification increases Modification Level by 1, maxed at Lv.4;  Modification will lower 3 levels Supply Improvement. Use Modification Blueprint to avoid lowering Improvement Levels.