The Air Force envisions the F-15EX as a sort of weapon truck, able to carry large munitions that the F-35 cannot. The F-35 can carry less than 6,000 pounds of munitions internally, whereas the F-15EX can carry almost 30,000 pounds of munitions on its external pylons. On battlefields with modern air defenses, the F-35 could stealthily collect targeting data and relay it to an F-15EX, which could then utilize advanced low-observable or hypersonic munitions to eliminate enemy targets.