Complex sentence: The Light Night Striking Force (LNSF) was an outgrowth of the Pathfinder Force use of the fast and long-ranged Mosquito bomber, which could carry a sizeable bombload.
Split into simpler sentences: The Light Night Striking Force (LNSF) was an outgrowth of the Pathfinder Force use of the Mosquito bomber. Fast and long-ranged the Mosquito could carry a sizeable bombload.