Wilson, in regards to your manticore's role.

Ever heard of naval destroyers? They were designed so that submarines didn't wipe out naval fleets, including things like... I don't know, battleships and aircraft carriers? Ie the equivalent of titans?
Or heck, battlecruisers, have similar hurt power to a battleship, but with less armor than them and considerably faster.

See what I'm getting at? It isn't all battleships pounding away at each other (ie big titans like dragons and giants), there are other roles to full. Who goes after the Fae shifters and attacks them fast and hard and by surprise so they don't take out the big guys?

Think three dimensionally.