Translation:N'écoute pas ce soldat !
I was told I was wrong because I "used the 'vous' form 'écoutez' instead of the command form 'écoute'." But isn't écoutez the plural (or formal) command form? I see nothing in the English to indicate that the speaker is addressing just one person.
N'écoutez pas ce soldat is a valid response. Did you report it?
N'écoutez pas ce soldat. Accepted June 2018