Conquest of the New World
Conquest of the New World was a mini-expansion for 6th edition Warhammer Fantasy that was released as part of White Dwarf issue #306 (UK numbering). It was meant to tie into the then newly released Warhammer Armies: Lustria splatbook by offering rules for campaigning in Lustria, several scenarios, and three new Regiments of Renown; Pizarro's Lost Legion, Tichi-Huichi's Raiders, and a generic one-unit version of the Zombie Pirates of the Vampire Coast... who were actually expanded into a fully-fledged army in their own right in the Warhammer Chronicles article of that same issue of White Dwarf.
All in all, it spanned 16 pages, but hey, you got it for free with your issue, so it wasn't that terrible. Plus it tied into the issue as a whole, which gave you two variant armies - the aforementioned Zombie Pirates, and the Lizardmen Hosts of Itza.