I forgot he slipped through that secret passage. Clearly some is true, Arthur, the knights and so on. Maybe the witwickan secret order did exist and passed down the legend from the knights to guard earth and the staff. But it was only the families of the knights of Camelot. Burton made up a lot of it though. The history of Prime's team for example. It explains their present bodies in historical images. I agree burton was keeping tabs on current events. Cogman and hot ro made that easy. And he could have easily acquired all those artifacts. He's rich an we saw in aoe salvage was being sold globally. He could easily have paid a fortune to get that pillar for example. I see your point about prime being the unreliable narrator in the first film. But if they had been so active on earth, surely there would be more evidence and public knowledge, even if just rumours and legends. And if so, no wonder the cons won th war. The bots were fighting all our wars instead. To me, it makes more sense for burton, cogman, hot rod, bulldog, spitfire to be descendants of Camelot, guarding the family secret and dementia setting in, making him start expanding his role in the lore to the crazy level. That's why he had that momentarily pause and break when telling the story, he started to remember this part was fake but then he went back into his delusion. Hot rod an co may have come to earth with bee looking for the allspark decades ago, before ww2, met young Burton in the war and after hearing of his family secret, agreed to help him over the years, having recognised the threat, while bee kept searching for the cube. And all the other autobots were on Cybertron fighting for their own world. Where they should be.