The research presented in this paper considers the impact of communication between multiple operators controlling multiple unmanned systems. First, communication between an unmanned aerial vehicle (UAV) operator and an unmanned ground vehicle (UGV) operator was coded, to account for target identification support. Second, communication was coded to account for instances of a UAV operator providing location support to a UGV operator. Regression analyses revealed that performance only improved with high amounts of one type of communication or the other. When both types of communication occurred at the same time, performance was equivalent to doing nothing at all. Implications of these effects are discussed.