This behaviour works for vanilla because hittables get removed if tank hasn't hit them for 60 seconds anyway, but in competitive hittables should never disappear while the tank is alive.
If tanks end up leaving a hittable on top of an atomizer trigger it will be deleted after 60 seconds.
These triggers should be disabled while tank is alive and in human control.
This behaviour works for vanilla because hittables get removed if tank hasn't hit them for 60 seconds anyway, but in competitive hittables should never disappear while the tank is alive. If tanks end up leaving a hittable on top of an atomizer trigger it will be deleted after 60 seconds. These triggers should be disabled while tank is alive and in human control.