It was the façade
The plan he told to the other members and it was basically the plot of metal gear revengeance.
But Nagato was just a bitch who wanted "peace".
Obito was a simp.
Madara wanted some mugen tsukuyomi fake utopia.
Imagine being an akatsuki member and just liking the vibe of war and killing just to find out the leadership is all larping faggots.