Jon it seems like you have set this up to give Boba Fett the upper hand. Punisher has no weapons? Against a guy in full space armor who has a jetpack, helmet, and 600 weapons built into his suit? Esssssh man!
But I still give it to Frank. He would charge Fett and probably get hit with some projectile on his way in, most likely a shot that would kill most men, but he'd keep coming. Blood draining out of him, he'd take Boba Fett down and fight as dirty as hell, breaking fingers, biting, grappling his way in, and Fett would be so surprised by this attack that he wouldn't know what to do. The Jetpack and all his ranged weapons would do him no good. Frank would find his helmet release, pop the top off of that can, dig out one of his eyes, and lock him into a choke until Fett's lifeless body went limp.
Then he would roll over and pass out, hoping finally for deaths embrace.
But it wouldn't happen.
He'd wake up in the medical bay of some ship, healed from his wounds, feeling better than ever.
He'd pretend to be asleep and overhear stories of Darth Vader and the rest of the villains in the Sith and the Empire.
And Frank Castle would know his mission was not done...
BOOM. See you later, Sith Scum.