Your take is also dangerous. Sending a load of militarized cops to breach someone's home with the intent to use lethal force at an instant based only on an anon

Your take is also dangerous. Sending a load of militarized cops to breach someone's home with the intent to use lethal force at an instant based only on an anonymous phone call empowers bad guys to create extremely dangerous situations for chosen targets on demand, and this is now common knowledge. You can't train your way around that.