Mason Kane is a soldier.
Was one, for most of the two recorded adventures that exist of his. He is not a spy and would not want to be on. He would prefer to go back to being, as he is described in the blurb for the first adventure, "a proud member of the elite off-the-books Anvil Program - a group of black ops soldiers who wage war from the shadows".
If we went solely on the rigging that this man in his mid-30's is wearing in the two depictions we see of him on the covers of those recounts, we would almost certainly have not entertained membership in this compendium for Kane; he is from his helmeted top to his regulation combat boots a soldier. His stories though qualify him as he is thrown unwillingly into matters of great intrique and national security and forced to work both with and against members of the Intelligence community.
From the moment we meet Kane, he is on the hunt, having grown tired of being the sought prey. "He was a wanted man, disavowed by his own country, the only American to earn a kill-on-sight order". He is still recovering from his last bit of trouble and has the itching sutures to prove it and we are told that "every intelligence agency in the Mideast" was searching for him.
The trouble for Kane and the matter that changed his life totally came during an op he was on with Anvil. From what he had deduced at the time of our meeting him, his commander in Anvil "as a part of a twisted scheme to force America's continued involvement in the Middle East, ordered an innocent Afghan family murdered". Kane refused and that got the guns turned on him to keep him quiet and now he is on the run and wanting to learn why a man that he had respected had gone bad. Kane was certain it was under orders but from whom and how high up the chain of command?
"He'd come from nothing, a half-breed who'd grown up on the streets, surrounded by pimps and dope boys. But the army didn't care that his mother was a drunk or that his father had abandoned him and had later blown his brains out with a cheap Walmart shotgun. The only thing the army cared about was whether he was good at his job, and Mason had been one of the best. There was a box somewhere filled with awards, and they all had citations that read, 'For selfless service and bravery under fire', but Mason didn't care about that."
One thing Kane had learned first on the East Los Angeles streets he grew up in and later in the deserts of Iraq and Afghanistan is that running from trouble never ends. To stop it you take the fight to the enemy and that is what Kane is planning, even if that enemy has an office in the White House.