Smart, good-looking and educated, Craig Vandersoot was a man with a very bright future. He was a major in the US Army, acting as a NATO liaison when he was put in command of a NATO research project to develop a light battle suit to be used by the military. The project was progressing well when it was discovered that this well-respected man had an interesting side job- security consultant for organized crime groups and terrorist organizations. Needless to say, this put a damper on Vandersoot's career. Shortly after this discovery, NATO sent three military police officers to arrest him. After Vandersoot killed the MP's, he snuck into the facility where they were working on the project, stole the battle suit and slaughtered everyone in the facility associated with the project.
Since that time, Vandersoot has been going by the codename Mechassassin and has become rather well known in the mercenary world as "the man who has the ability to get even the most difficult jobs completed". He even still retains his side job as a security consultant, except now he does it for super villains.
Mechassassin was captured in 2007 and sentenced to serve his time in Stronghold Prison. However, when the breakout occurred in 2009, he escaped. He's now free and working with ARGENT.