Splash, out. Right 200 drop 100, fire for effect.
Traitors and spies are hung or what ever the current favorite method of execution is. I believe they electrocuted the Rosenbergs.
The problem is the Constitutional requirements for a charge of treason. Very hard to meet. Espionage is much easier.
Target description please, shell and fuse combination, over. Otherwise you are getting one round of HE delay. I have not done Talk an untrained observer through a fire mission in years.