The Atlantean Military has had a track record of several thousand years (at the most 3 millenia) and have conquered territory from colonies in Antartica, to territory as far west, as the Easter Islands, and as North as Scandinavia.

As expected the Americas were of course (much like to the later Europeans) a cornucopia to the Atlanteans, and the majority conquered during their Golden Age; but the Americas wasn't an easy feat to conquer due to the presence of indignous tribes, red-skinned giant cannibals, and many other dangerous creatures, legendary or not, one of them being the Jaguar, a sort after creature due to it's powerful strength, limber agility, and great stealth. Simply put Ocelotls wore the skin of Jaguars; they were known to be very stealthy, savage towards their enemies, and in the rainforests, and jungles of the world, the Ocelotl was non-existent to the untrained eye.

The Ocelotls were derived of a fanatical type of Soldier known as a "Berserker". However the Atlanteans had a step up from this, instead of just a general "going mad in combat" Berserkers were soldiers who had taken whatever animals they had skinned (or feathers they plucked), and wore their hides (or feathers), wherein some would even "subconsiously" go into a persona based on the pelt they wore, and they all had fanatical devotion to the goddess Gaia. 

To be a Ocelotl Beserker required the aforementioned absolute dedication to the Goddess Gaia, crafting your own "Sword" (A Wooden Club typically inserted with Obsidian), and finally killing and skinning your own Jaguar.