Right... What's an ark?

After navigating my party of Lightning, Hope, and Vanille (3x healing and 3x magic with attack, status ailments, and buffs) across a huge room with extending catwalks and tons of tricky enemies, I came to the person who runs the government. He then reveals, by way of killing every solider in the room, that he is in fact one of the ancient beings that run the place and that humans are nothing more than tools they mass produce. Next he tells the group that their mission is actually not to save the world but that one of them will become a giant monster to destroy it. Understandably the party dosen't take this too well and attack, he then turns into a giant metallic beast with a huge face and floating shields that cast magic.

The battle was rather tricky since every few minuets he would charge up and the magic attacks from his shields would double, so unless I took out all his shields quickly he would eventually put out more damage than I could heal from. Finally I managed to take out all his shields with a constant switching between hard attacks and triple magic attacks, then it was only a matter of wearing down the face. After the battle he reappeared perfectly fine in his human form and then vanished as the giant airship they were all on start to crash.

There is then another cut scene of the group trying to escape the crashing ship in their jet (which starts to fight on it's own) while being shot at by the military. Just before they nearly crash into a building they are teleported to what looks like an underground train station. Before moving on the group talk over what they have learned, and they are split between beveling that they need to destroy the world, thinking it was all a lie, and being indifferent to it. They then start to explore the odd place they find themselves it (with off world architecture) and soon discover that it's an "ark" built by the beings long ago to store an army of robot weapons in case they are ever attacked. It also doubles as a training ground for people who are given the brand, so it looks like I'll be grinding here a bit tomorrow.