Remember manhacks from half life?
They're real.
Just imagine a swarm of Drone40 UAV’s coming at you with 40mm kinetic (high-explosive) payloads. THAT’S a nightmare. According to a 2019 article on it, “most of the flying, identifying and tracking of targets is done autonomously”, with “multiple Drone 40s flying together and operating off the sensor data from a single ISR drone in the swarm”. Scary
https://defensereview.com/defendtex-drone40-40mm-autonomous-mini-quadcopter-uas-uav-drone-munition-infantry-warfare-game-changer/