Iamdoubled posted... I found the manhole, it's when i'm in the wonder city foundations that I don't know where to go, I'm stuck there. Can't find my way through collapsed streets
If I remember correctly for this mission you have to first make your way to the Wonder Tower foundations, then make your way back to the train room (where one of the Penguin's jammer devices was located - the same location as the predator challenge End of the Line). From there I think you have to leave the subway by heading west because the east, where you originally entered, is now locked off.