Persia's looking to buy the blueprints of the F-15, A10, and F-18 from Russia, China or Germany as it's suspected atleast one of the listed nations has found such documents after annexing american territory.
Persia is also looking to buy the blueprints for the Rheinmetall L-55 cannon from Germany. If Germany does not want to sell, then Persia will simply get the M256 through Russia or China.