Here is the full list of all 52 Confrontation achievements.
Open a character data sheet 100 times
Play Dalon for 6h
Kill 10 Ritualists
Kill 20 Belisarius
Kill 15 Fanatics
Kill 15 Initiates
Kill 15 Totem bearers
Finish the solo campaign
Let your units fall to the ground in agony 150 times
Kill 20 Biopsists
Suffer 100 stuns
Reach level 40 with a unit
Finish Chapter 3
Play Nekhys for 6h
Kill 20 Dasyatis
Play Lanwys for 6h
Play Fera for 5h
Play Nemrod for 5h
Play Lothaire for 5h
Play Zelia for 6h
Play Darius for 5h
Kill 10 Pack leaders
Kill 10 Sibyls
Earn 3,000,000 XP points
Reach level 30 with a unit
Let Zelia fall to the ground in agony 25 times
Kill 100 Wolfen
Suffer 50 fears
Play Haeth for 5h
Play Melian for 5h
Play Caan for 5h
Play Taelyn for 4h
Use Shadow's kin 50 times with Fera
Finish Chapter 2
Use Exorcism 50 times with Nemrod
Spend 10 Attribute points
Spend 10 Weapon points
Spend 10 Armor points
Use Fireball 50 times with Nekhys
Reach level 20 with a unit
Kill 100 Orcs
Use Wave of Fervour 50 times with Lothaire
Use Holy Prayer 50 times with Darius
Make 50 quick loads
Finish Chapter 1
Use Meteor 50 times with Zelia
Make 50 quick saves
Reach level 10 with a unit
Use Divine Favor 50 times with Lanwys
Kill 100 Scorpions
Kill a Mecasyatis
Launch the game credits