B-65 Shortsword
From Halopedia, the Halo wiki
A UNSC fighter that may have preceded the Longsword Bomber. Was once thought to be the Skyhawk in the Halo Wars trailer.
UNSC "Shortsword" bomber - A ground based atmospheric bomber that is used primarily for short range, heavy payload, runs against ground targets. Primarily developed as a low altitude bomber the shortsword has proven to be very effective against Covenant installations.