AUTHOR'S NOTE: I am writing this story on the assumption that you know at least the basics of the Metal Gear series. If you have any questions, don't hesitate to ask in a PM or a review.
DISCLAIMER: the characters in this story are the property of Hideo Kojima. The Wolf-Pack team is of my design, the names are not.
On a tired battlefield, the U.S and Iran/Iraq are still at it. While America has stuck to its home grown and trained troops, the terrorists have hired PMC's (Private Military Company or mercenaries). With the passing of time, we have developed nanomachines to inject into the blood and muscles to help coordinate and keep track of our biosigns. For better or worse, all military functions in all nations were monitored by injection. We called the System "SOP" or "Sons of the Patriots". Only a select few have dodged this, and Wolf-Pack was one of them; only because they were not supposed to exist. The veil of secrecy was perpetrated with extreme actions. This team is the reincarnation, and grouping of FOX-HOUND, coupled with FOX. The team inherited the names of the FOXHOUND operatives from the Shadow Moses incident, as per their specialty, also the members of the group were listed as MIA, so if anyone started asking questions they reached a dead end. Called in for suicide missions that included assassinations, rescues, and any other act that could only be talked about behind closed doors, the government knew Wolf-Pack was useful….and deadly.
Still, even with all their experience, the president called in the B&Bs. These four people each had their own background, all shell-shocked by some heinous war crime, and they take it out on their enemies. Unbeknownst to Wolf-Pack, the B&Bs were assigned to them, so the team could baby-sit the clinically insane four.