Complex sentence: The Black Watch returned after two months, and deployed to the Hook with one Rifle company being deployed on each of the features' four hills, Point 121, the "Hook", the "Sausage" and Point 146.
Split into simpler sentences: The Black Watch returned after two months, and deployed to the Hook. One Rifle company was deployed on each of the features' four hills, Point 121, the "Hook", the "Sausage" and Point 146.