An anti-AGS riot turns sour when Rudra threatened to use force to settle it after a bombing incident was credited to Hounds, a group of supposedly anti-PMC terrorists when mainstream news media claim that they were simply just extremists not out to kill. Haruki has doubts over the claims and visits Ulla Chiaki, the main leader of Hounds and a friend of Haruki who tells him that he and the others didn't plant the bomb in the mall. However, public pressure over pro and anti-Hound groups has forced AGS to conduct an anti-terrorist mission. The Blademen were deployed to locate them, only for their systems to be hacked in order to give Ulla and the others the chance to escape.
ある日の夕方、ショッピングモールで爆発テロが発生。
その数時間後、「ハウンド」という武装市民グループが犯行声明を発表した。
ハルキはある男に会いに出かけた――その男とはハウンドの若きリーダー・ウラ。
彼は「ハウンドの名を騙り、偽の声明文を出した奴らがいる」とハルキに告げた。
ユニット・ヴァイパーにハウンド急襲の指令が下された。
ハウンドのアジトへ向かう途中、中型バグメック・リゾビウスが立ちはだかるが、何とか掃討に成功。
アジトに辿り着いたユニット・ヴァイパーがドアを開けると――!?
Rebeliões eclodem por toda a cidade depois de um atentado a bomba executado por um grupo de terroristas que luta contra empresas de segurança privada.