Here is the full list of all 21 Shadows on the Vatican Act II: Wrath achievements.
Complete Silvia actions first.
That's not going to work with him.
We understand you, but better avoid violence if possible!
Can't get enough of playing with Silvia, huh?
Commit murder.
Hit someone five times in a row just because you can.
An adventure game with no crowbars? Make one!
Get rid of all the thugs guarding the Raja.
Try camouflaging your voice to trick a thug.
Open the car trunk as lazy people do.
Get rid of James by using no wrong answers.
Complete James actions first.
Get the anti-hangover preparation right on first try
Playing with pen and paper on your side?
Find out where Silvia is taken captive.
Sorry, this is not your tv's default PIN.
Nice try, but wrong!
Wasn't "team" the best path of the three?
Complete Shadows on the Vatican Act II.
Complete the adventure with dialogue skipping disabled.
This is not how you're going to beat Level27.