In Allied, Max Vatan denied spy allegations on Marianne by kicking the chair in front of a S.O.E official.(see the chair position in the IMAGE)
Actually S.O.E official hiding the gun in the desk.
But he didn't shoot Max Vatan, why?
The SOE official has the gun to defend himself if attacked.
Vatan isn't attacking the official (or the Army officer) he's just kicking the chair in frustration and outrage....and that's not something to be shot for!
Equally, the SOE need Vatan to keep Marianne in place while they identify her handler...another reason not to shoot him.