User blog comment:Tribaldragon1/Tribal's Arena of Doom/@comment-24903406-20160111013325/@comment-24903406-20160111021951

The T-100, with relatively thick armor, shrugs off the rounds at range. While the Shiryon retreats, the T-100 uses speed to flank around the Shiryon. The T-100's gun, a 122mm autoloader railgun, does not have enough penetration to pen the frontal glacis of the Shiryon.

Therefore, the T-100 flanks around and pumps 2 shots into the Shiryon's side. The T-100 then skirts around and makes wide circles around the Shiryon.