Welcome to Librarium Online!
dunno if this is old news, but found this on the pre-orders for the site linky
while I'm here, there's an O&G and empire bigger battalion on advances for GW website, which I feel is a bit worse for O&G, the old one had more blorcs
is this a TTRPG? hopefully not just a clone of DnD and will have something new to add.
The orc and empire boxes are actually called brigades which i guess is between the battalion and army boxes.