User blog comment:So-Pro Warrior/Time to Get Back to Things! Season 1-Battle 11: SEAL Team Seven vs. Task Force 141/@comment-5795750-20141113115243/@comment-4541447-20141114033530

The scenario is taking place before MW2 yes BUT after Kingfish which is why Price isn't here. So yes Shepherd hasn't betrayed them by this time. Which is why he's looking for potential recruits such as the SEALs.