This class is designed to guide fire departments on the ins and outs of large attack lines. As the usage of small, preconnected handlines has become the go-to option, comfort level in the deployments and tactical decision making surrounding attack lines of greater diameters has declined significantly. This puts us at a greater risk for property loss, multiple-alarm fires, and even LODDs; our fire attack must escalate to match fire growth beyond a typical residential fire. With dozens of hoselines being classified as a large handline, there is additional confusion as to which should be employed. To combat this trend, we will take an in-depth look into large attack line deployments and how these packages are selected, stretched, and flowed. Through a clear understanding of the intended purpose of line sizes with diameters greater than 2-inch and less than 3-inch, we will find solutions that will guide any department in developing competency, regardless of department staffing or size.