The Silver Wolf Thug carries uzis in each hand and attacks the 3 columns directly in front of the Thug, very similar to the Flame Trooper. Armored targets need not fret against this attack, but targets without any protection to piercing damage can be ripped up in a hail of bullets, especially considering that each can land a critical for added damage. Compared to the Silver Wolf Enforcer, this unit does very low damage and can be avoided completely, making it less of a threat.
The strongest version of this unit is the Silver Wolf Howler. You will begin to encounter that version at level 55.