The heavy regiments were so big that they were treated essentially like understrength brigades, with each battalion acting as a regiment. The veteran infantry asked "What division is that?" It would be a pleasure to do the heavy artillery impression. Under-represented in late war scenarios in my opinion.
Pine River Boys, Co I, 7th Wisconsin
"We're... Christians, what read the Bible and foller what it says about lovin' your enemies and carin' for them what despitefully use you -- that is, after you've downed 'em good and hard."
-Si Klegg and His Pard Shorty