Does the phrase "successive waves of 28 drones" mean "28 drones in successive waves"? A total of 4 killed doesn't give the impression of a powerful weapon. With

Does the phrase "successive waves of 28 drones" mean "28 drones in successive waves"? A total of 4 killed doesn't give the impression of a powerful weapon. With a long range but seemingly small payload, the Geran drones look like more of a political than tactical weapon.