Ambush Hogger's patrol! Gnolls haven't figured out how to look up yet, time to crash the party!
Focus on taking out the spawned Huntress with units like Abomination or use Huntress and Spells or Unbound Minis as a distraction to clear the wave!
For every PvE mission, there is a campaign version and a Heroic version. When you first begin the game, you can only participate in campaign missions. Upon collecting 50 sigils, you will then unlock Heroic missions.
Campaign missions will grant rewards after the first successful clear with ANY family. Heroic missions must be completed with EACH of the 5 different families in order to receive the mission rewards.