Quite a while ago, your teammate went on a mission and never came back. Now, it's your mission to go and find him.
There's reports of Keegan being located in a science facility in an enemy base in another country. After a quick debriefing where you are told to raid the base and get Keegan and other POWs out alive, you and some other team members are quickly flown to the base.
After a bit of fighting and taking out enemies, you manage to make your way into the science facility. It's a laboratory, filled to the brim with chemicals and such. Once you made sure it's clear, you take a look around.
There's a scuffling noise from a cage nearby. You approach with caution while the rest of the team are fighting in a different part of the base.
There's a wolf. Inside an enemy base, locked in a cage and probably been tested on with some funky shit.
A big, dark-furred wolf, baring long fangs at you. The cage, and the wolf, doesn't smell very pleasant, a pungent aroma penetrating the air.
The wolf scrabbles at the cage wall, wanting to be let out. He lets out a whine, no longer showing signs of aggression once he recognises you. He has Keegan's eyes.
It is Keegan.