alternatehistory.com

Many thanks for the feedback, here we go again! Just finished this one:

July 4, 1863
Sacrificing the Texas Brigade had saved the right flank of the Army of Northern Virginia at the last minute. While Wright's badly bloodied division was taken from the front line, about 200 mostly wounded Texans in the middle, two of whom were carrying a stretcher with Major General Hood who was unconscious after a head hit by shrapnel, Howe's and Newton's men regrouped to take a well deserved rest afterwards. The Union regiments were disorganized, some of them were running low on ammunition and they urgently needed water before any thought could be given to moving forward again

This respite was all the Confederates needed. Just minutes before noon, Evander M. Law, now acting commander of Hood's Division, could hear marching noises in his rear. It was Longstreet, who, after a heated discussion with A. P. Hill, had prevailed and led the remaining three brigades of Anderson's Division, 3,700 fresh men, on the double to the site of the greatest threat. From left to right or east to west, Ambrose R. Wright's, William Mahone's and the tiny Florida Brigade under Colonel David Lang took up positions. The line was extended by the remains of the two Georgia Brigades from Hood's Division. Since Tige Anderson had been mortally wounded and his brigade was now commanded by Lieutenant Colonel William Luffman, Henry L. Benning assumed command of the combined units. Law's old brigade under Colonel James L. Sheffield formed a last reserve, shifted a little to the north.

When Sedgwick's Corps' lead columns made contact with the Confederate position again at about 12:30 p.m., they encountered a solid line of greycoats, who greeted them with a sharp volley. For the remainder of the afternoon, after an impromptu conference with his divisional commanders who advised against a renewed frontal attack, John Sedgwick was content to send out a heavy skirmish line and carry out several mock attacks to keep his opponents in place.