Today’s Army requires physically fit Soldiers that are mobile, lethal, and survivable. However, as technology continues to advance, the Army attempts to increase Soldiers’ capabilities with additional equipment. These additional capabilities come at the cost of additional weight, which makes the Soldier less mobile and therefore less effective in terms of lethality and survivability. Understanding the trade space between mobility, lethality, and survivability better allows the U.S. Army to improve its doctrine and in turn, give commanders more information about how to train and equip their formations to accomplish their missions. With this in mind, this research aims to: (1) quantify mobility through linear regression models, (2) analyze the effect of increased load on a Soldier’s lethality and mobility through a controlled study, and (3) simulate the effect that different mobility speeds have on a Soldier’s survivability using Infantry Warrior Simulation (IWARS).