Which type of fire would be used to target a sequence of enemy troops along a line?

Traversing fire is specifically designed for targeting a sequence of enemy troops arranged along a line. This method allows the gunner to sweep the weapon back and forth across the target area, effectively covering more ground and engaging multiple targets that are spread out laterally.

By adjusting the direction of fire while maintaining a constant elevation, the gunner can effectively engage several enemy soldiers without the need to reposition the weapon. This makes traversing fire particularly suitable for scenarios where the enemy is organized in a linear fashion or in a formation that stretches across a horizontal plane.

In contrast, concentrated fire focuses on a single point, continuous fire may refer to sustained fire without break but doesn't specifically address targeting a line, and fixed fire implies aiming at a predetermined point without movement across a wider target area. Therefore, traversing fire is optimal for effectively engaging a line of troops.