Bloody perfect!

Aii! Must. Have. More. Please?

I love how you've perfectly blended the two worlds together and the interactions between Bruce and Desmond were well done.

I love it.

KYAAAAAAAA THIS WAS SO AWESOME! I would def'ly read an update chapter or a sequel fic, because this was very imaginative and believable! Bruce and Desmond are my most favourite characters of their respective worlds - I wonder if there was a fic placed after AC3, Desmond would be alive bc of a POE or something

This story is really well-written! A shocking idea at first, because one seldom see crossovers that essentially fuse the Good and the Bad of different universes together to weave a story that question the fundamental righteousness of the protagonists from both sides. But it makes a surprising amount of sense in this story.

Once thinking it over, I'm amazed at how little tweak is required for both worlds to make them blend together. And how easily it is for the Assassins of LoS and the Assassins of AC to come together, and suddenly "nothing is as black and white as first seems" indeed.

The one creative choice that really surprised me is that Thomas Wayne is a Templar (and in fact, the whole Wayne line are Templars!) but I've come to appreciate this upon second reading. Because what are Templar beliefs but a vision of peace under a single rule? And is that not what the Wayne family has done to Gotham?
And is that really a coincidence this mentality is most obviously manifested in the city's favorite son? (The Prince who controlled the elites and the economy with nothing more than a charming smile, and the Knight who ruled the underground and the night with an iron-fist.)
Not sure if this is what you have in mind, or maybe I'm just thinking too hard. But Bruce taking up the Templar mantle makes so much sense, it's scary! No wonder the Assassins are giving everything they can to sway his choice.

Finally, I really enjoy the challenges you've written, especially since the "fights" are carried out with words rather than fists. Yet the morality or philosophical debates aren't in the face, but subtly hidden in the background so that they won't distract the flow of the story. Very good job!

A general thumbs up here. I like how the League of Shadows got blended with the Brotherhood and I like Desmond's multiple personalities, though I think it went a bit too far to have them actively talking to each other. The joke at the end is pretty funny.