Mark Stanton, Director
Tel. 01789 264404
Health staff "have literally kept the country alive for the past year", says the British Medical Association.
The victim - understood to be a Welsh Guards sergeant - was fatally injured at the Castlemartin base.
'History will not judge this nation kindly', they say, in a letter to Boris Johnson.
Televised briefings will "increase public accountability and transparency", the Cabinet Office says.
Two men have been arrested after suffering serious injuries in the incident.