Riot is an original member of Heavy Mettle and they were hired as muscle for Joe Silvermane's operations. Silvermane was selling high-tech weaponry from AIM to gang members and the New Warriors wanted to shut them down. A man named Dalton Beck was dating Turbo of the New Warriors and Musashi had no idea that Dalton was Firestrike, the leader of Heavy Mettle. Aegis got the name of the arms dealer that was supplying the gangs with the weapons but Heavy Mettle was waiting to ambush them when they arrived to the warehouse in the Williamsburg neighborhood of Brooklyn. Riot shot the warehouse floor with a concentrated soundwave blast that sent Speedball and Bolt into the water. Riot and the rest of Heavy Mettle was able to escape during their first encounter with the New Warriors. Turbo would discover that Dalton was really Firestrike and he decided to turn over a new leaf and tell the New Warriors who was the man behind the entire operation. Nova would disguise himself as Firestrike and meet the rest of Heavy Mettle at a warehouse in Brooklyn. Riot unleashed a soundwave attack on Firestrike and the rest of Heavy Mettle entered the fray. The battle was short and sweet but they told Firestrike they didn't mean to hurt him and considered the assault a practice session. Riot and the rest of Heavy Mettle raided a Baintronics weapons convoy in the Adirondack Mountains in Upstate, New York where the New Warriors were waiting. Riot fired a sonic blast that caused the driver of the convoy to lose control and topple to the ground. The New Warriors appeared and engaged Heavy Mettle in combat. Riot fired his sonic blast towards Namorita but Aegis absorbed the blast and sent it back towards his enemy. Riot was knocked off his feet and the rest of Heavy Mettle were defeated.   

Creation

Riot was created by Karl Kerschl and Jay Faerber in 2000 and first appeared in The New Warriors # 4.

The Initiative

Riot and the rest of Heavy Mettle would join the Initiative and are selected to join the Shadow Initiative. Taskmaster brings in a bunch of D-list villains and other Initiative members they feel are expendable into the Shadow Initiative. This group was the first wave of Initiative members to assault a prison in the Negative Zone called 42 that was taken over by Blastaar and his army. This group acted as cannon fodder to soften up Blastaar's forces before sending in the big boys to clean up. Riot and most of Heavy Mettle were killed in the assault. 

Abilities & Paraphernalia

Riot wore a suit that enabled him to fire sonic blasts from his gauntlets.