A 20,000-ton tactical nuclear bomb, with a blast radius of about 600 meters, a radiation radius of less than 1 kilometer, and an early nuclear fallout radius of 1.5 kilometers, has a comprehensive killing radius on humans of only up to 2 kilometers.
For field armies, such killing effects are not as substantial as a round of bombardment from an artillery formation. During the Cold War, even the Soviet army required its field troops to possess the quality of charging forward under a nuclear explosion.
Because this thing is indeed quite useless, only in attacks on cities can it exert its maximum destructive effect.
----However, there is always a "however" to everything.
The nuclear bomb detonated by Lei Jie had an extraordinarily high delivery precision.
Although it was not an airburst, the explosion point was right in the middle of the Mechanical God Sect fleet.
