Here is the full list of all 19 Fantasy Versus achievements.
Participate in 20 Versus Battles.
Survive a Versus Battle without dying.
Reach the maximum level with all units.
Reached the Rank "Decurion".
Defeat a total of 3 Units in a single Versus Battle.
Clear all levels.
Reached the Rank "Signifer".
Reached the Rank "Miles".
Reached the Rank "Hastatus".
Unlock all characters, equipments and items.
Win 20 Versus Battles.
Defeat a total of 100 units in Versus Battles.
Die a total of 100 times in Versus Battles.
Earn a total of 20000 honer points in Versus Battles.
Reached the Rank "Optio".
Reached the Rank "Centurion".
Reached the Rank "Legatus".
Reached the Rank "Dux".
Reached the Rank "Magister Militum".