The Marine Corps MV-22 Osprey has successfully tested just such an ability, launching both AGM-17 Griffin missiles and the AeroVironment Switchblade, a kamikaze drone, as part of a test from DARPA's Persistent Close Air Support program, IHS Jane's reports.
The test was conducted back in March and comes on the heels of a December 2014 test that saw the plane's manufacturers, Bell and Boeing, fire tube-mounted, 70-millimeter rockets. In this test, the Griffin made a successful hit, although as Jane's reports, DARPA didn't release any information on the Switchblade.
As we reported back in December, none of these tests are meant to turn the Osprey into a dedicated attack aircraft. Instead, they're simply meant to reduce the plane/chopper's reliance on escorts, like the Corps' AH-1 SuperCobra.