Swarm tech is great for distractions, not for masking a high‑energy signature. The blast will still leave a thermal, acoustic and electromagnetic trace that sensors pick up. If you need to hide a cannon, rely on active suppression—thermal blankets, chaff for radar, and blast‑absorbing casings. Decoys can buy time, but you can’t trick a sensor into thinking the fire is from somewhere else. Keep the launch point concealed and use the environment to your advantage, like launching from a cavern or under dense foliage, and add a burst of smoke or a short‑range EMP to scrub the signature. That’s the only practical way to keep a cannon off the radar.