Defeat level 20 in the solo campaign.
Learn how to Raid Brigade.
Defeat level 50 in the solo campaign.
Defeat level 100 in the solo campaign.
Star up one of your weapons.
Regular heroes are so passe, so star 'em up!
Win 1 PvP match.
Win 10 PvP matches.
Use a hero or item to level up something.
Win 100 PvP matches.