These titans remind me of combat drones. This control center has tracked their general migration patterns, and to my eye, they're almost like troop movements. When they decide to swarm something, they come from all over, like something's commanding them. Not to mention they spread Element everywhere they go. So basically, before the Reseed Protocol can be triggered, the titans need to be eliminated.
Normally I'd be all gung ho about an impossible mission like that, but the number of titans we'd have to take down is nuts. Mei and I might be a killer power couple, if I do say so myself, but even we'd die of old age before we ever made a dent in the their population.
There must be something we can do though. I did find lots of references to a place called "Arat Prime," off on the other side of the planet. Looks promising, but...well now isn't that interesting. Our favorite mystery being seems to think so too. Is that where it's leading us?