The Valiant achievements

Slow down 300 enemy soldiers using Volley Ability.

Kill an enemy Squad who is retreating.

Build a siege engine.

Unlock an Ability on a Hero's skill tree.

Insult 30 different enemy Squads.

Build 3 towers.

Complete the Prologue missions called Brothers and The Severance.

Complete your first single player campaign mission.

Charge at 20 different enemy Squads.

Kill your first enemy Squad.

First use of Retribution.

Complete campaign on hard difficulty.