Mike wanted to own Immobliare in return for bailing the Vatican out of debt.

The people involved with Immobliare, (Gilday, Kenzig, Lucchesi and to an extent, Altobllo and Zasa), wanted to string Mike along with the complicated approval process, take his money and then kill him in the AC massacre.

Where it gets complicated is after Mike survives. They use the pope's death to string Mike along even further, and then plan to kill him at the opera.

Is it that simple?

What details in this plot are complicated and don't make sense? Can we fill in the gaps ourselves like we've done with the gaps in Part II?