The development of long-range weapons is increasing the need for deconfliction within the joint force and challenging the traditional methods of integrating fires. At the same time, the concepts of Mission Command and cross-domain synergy create tensions on how best to manage such assets. In order to quickly and effectively field new weapon systems, simulations that focus on integrating emerging capabilities should be conducted during materiel solution development and acquisition. These simulations should not be service-specific exercises that validate Key Performance Parameters or inform requirements, rather they should focus on how these systems would be used in future conflict with an eye toward gaining enough experience that joint doctrine can be tested and either validated or revised. Current simulations using the Army Tactical Missile System and potential counter-unmanned aerial systems are provided as examples of how early simulation would have allowed for quicker, more effective integration of long range fires into the joint fight.