Complex sentence: Fifteen years later in 2011, he is a Captain in 22 SAS and the commanding officer of player character John "Soap" MacTavish and his squad, designated Bravo Team.
Split into simpler sentences: Fifteen years later in 2011, he is a Captain in 22 SAS. He is John "Soap" MacTavish's (the main playable character) and the squad's commanding officer, designated Bravo Team.