This is the new 'monster' Gettysburg game from Flying Pig;
https://boardgamegeek.com/boardgame/329089/most-fearful-sacrifice-three-days-gettysburg.
It uses Herman Luttmanns excellent 'Blind Sword' system and the maps are the work of late, lamented, Rick Barber.
Despite the hefty price tag, I did read one or two comments about the poor quality of some of the components and low production values. This may, of course be subjective as others seem to be quite happy with the quality.
It all looks very impressive with two huge, mounted maps and large counters. Personally, I'm not a great fan of Rick Barbers map style although I appreciate that many people are. For me, they are just a bit too 'busy' but again, this is a very subjective subject. Undoubtedly, he was very talented man and responsible for the maps in many games.
I doubt very much being ever able to cough up £123 (excluding postage) for it, even if I had the room to play it. Still, it is quite interesting if only because of the Luttmann game system.
“O Lord God, let me not be disgraced in my old days.”
'We few, we happy few, we band of brothers'