Gorkanaut

Junk armour. being made from junk reinforced by an Orkz mysterious power, Gorkanaut are resistant to Bludgeoning, piercing, slashing and ranged attacks that are non-magical

Harsh presence. the presence a Gorkanaut makes, terrifies its opponents, targets within a 60 ft range of a Gorkanaut must make a (Con. save, 15) or be frightened   

Giant Klaw. Melee Weapon Attack: +5 to hit, reach 10 ft., one target. Hit: 15 (3d8 + 5) bludgeoning damage. 

Orkling gun. Ranged Weapon Attack: +3 to hit, range 30/75 ft., one target. Hit: 12 (2d6 + 3) piercing damage.

Quaking stomp. AOE Attack: +5 to hit, reach 25 ft. (Dex. save, 13), three targets. Hit: 12 (5d4 + 5) Force damage - if saving throw failed, targets are knocked prone 

Opportunity attack