How many countless battles wasted lives on that same tactic?
I can think of at least 6 or 7 off the top of my head.
Suicidal to do such a thing and the Generals who could give a rip about the lives of the men they are entrusted to lead.
It was a waste of good men. Besides, the Union Army troops would end up laying siege and bombarded the fort for the next two months until September when the Confederates abandoned it.