It proves that your implications that there was no such thing as fighting soldiers were false.
An army of transvestites was also a possibility. Nonetheless, that is not what occurred, because that was not what was ordered. Had this captain stated that "We could not land the provisions because we lacked the 12000 monogamous gay couples in assless chaps necessary," or, "We could not land the provisions becuase the alien mothership failed to engage the tractor beam." How does whether these men are sailors or infantry have anything to do with your failed argument that they were to engage shore batteries with muskets? You've taken us down a path of foolish fancy with your rants about what was possible.
I never said they were to take on shore batteries. I said that they were to cover the delivery of the provisions and the letter from the captain of the other ship shows that he was expecting 300 sailors to do just that, so you guy's implications that there's no way sailors would cover a provision delivery are false.
What happened is that ships were sent on a fool's errand; reinforcement of a fort which was deemed impossible by anyone with authority to say so. Their efforts were further crippled by Lincoln's redirection of Powhatan to Florida.
Whether or not that is true has nothing to do with the fact that a letter from a captain on the other ship indeed proves that fighting sailors did exist, which proves false your implications that sailors would never be used in such an operation.
They are one in the same. Resistance to landing supplies would come from shore batteries. You could not have said both the thing and it's opposite.
and the letter from the captain of the other ship shows that he was expecting 300 sailors to do just that,
No, he expected 300 sailors aboard Powhatan's gunboats to cover the expedition, not your "fighting sailors" whatever they are (note: sailors aboard a gunship would constitute 'fighting sailors' in my mind).