Well, I know Graviteam think their abbreviations for the German OOB are logical... not to me.
The 17 AC was driving me nuts. What was it?
17 Army Corps.
What are the other options?
I finally conclude it is the 17 Armee-Corps (just a training company - feld-ersatz?).
It is directly subordinate.
So they use 'TD' for panzer-divisions
TD - Tank Division not panzer, game not have German locale only English and Russian
and 'AC' for infantry corps...
Army, not infantry
mixing German and Soviet designations is not logical to me
Game has no German designations