A firing squad was a group of soldiers detailed to shoot a condemned person.
In the War Lords' simulation of World War II, the British Army found the Second Doctor guilty of espionage. Smythe used his spectacles to convince the jury to find them guilty and the Doctor was to be executed by firing squad at dawn. (TV: The War Games)
Rassilon, threatened by the Twelfth Doctor's presence on Gallifrey and still desperate for information on the Hybrid, ordered first troops and then the High Council to make contact with the Doctor. However, the Doctor was only willing to speak directly to Rassilon himself. Eventually, Rassilon was forced out into the Drylands to confront him. There, the Doctor held him alone responsible for the crimes of the Last Great Time War, and for his treatment in his confession dial. Rassilon tried to have a firing squad execute the unarmed Doctor, who ordered him to "get off my planet." However, the squad purposefully missed due to their great respect for the Doctor. (TV: Hell Bent)
During the Night of the Long Knives on 29 and 30 June 1934, Heinrich Himmler instructed a firing squad to execute condemned members of the Sturmabteilung. Two thousand people were sentenced to death. When the purge ended, the firing squad suffered a mental breakdown. (PROSE: Timewyrm: Exodus)