Recent trends in tactical vehicle development have focused on achieving a balance between protection and mobility through reinforced hull structures, modular armor systems, and advanced mission equipment. These developments have led to an increase in gross vehicle weight (GVW), consequently requiring higher engine performance to maintain adequate mobility. In Korea, the development of a 12-ton-class tactical vehicle is currently underway, and establishing design criteria suitable for domestic operational environments through the analysis of existing tactical vehicle platforms has emerged as an important task. Accordingly, this study conducts a comprehensive survey of international tactical vehicle development cases and analyzes their operational roles, technical characteristics, and development backgrounds in order to construct a reference database applicable to the development of domestic medium-class tactical vehicles. In addition, the relationships among GVW, engine power, and power-to-weight ratio (P/W) are analyzed for the surveyed vehicles to identify technological trends adopted to compensate for increasing vehicle weight.