What type of projectile is designed for use against unarmored surface targets or personnel?

The correct answer focuses on high-capacity projectiles, which are specifically designed to maximize the explosive effects on unarmored surface targets or personnel. These types of projectiles have a larger charge, enabling them to deliver significant destructive power over a wide area, making them particularly effective against softer targets where penetration of armor is not a concern.

High-capacity projectiles are engineered to create a larger blast radius and cause damage to a maximum number of personnel or structures without the need for penetrating armor, which is essential in many combat scenarios where the threat is not heavily armored.

Meanwhile, armor-piercing projectiles are tailored for penetrating protective coverings, making them unsuitable for targeting unprotected personnel. High-explosive projectiles deliver a powerful explosion, but they generally focus on penetrating armor as well. Fragmentation projectiles, although effective against personnel, are primarily designed to break apart upon detonation to disperse shrapnel, which may not provide as concentrated an effect as high-capacity projectiles against unarmored targets. This distinction highlights why high-capacity projectiles are the optimal choice for this purpose.