Nope. The red colour of numbers isn't the determinant of belonging to a guard unit. This was indicated with the Guard emblem on fuselage usually and yellow or white stripes on the tail mostly.
P-47 Thunderbolt piloted by Captain Raymond M. Walsh of the 406th Fighter Group is silhouetted against the exploding ammunition truck he just strafed, France, 23 June 1944. The image was taken by his wingman's gun camera in the following P-47. I have seen differing dates for this incident, one from early 1945. So if anyone knows different feel free to correct me
The Russian Red Banner units were made up of very experienced + ace pilots. They were part off their own specialist unit and painted a red circle around the aircraft nose cowling. But this wasnt until later in the war, aroun mid 43 onwards.
'Fraid that's a Blackburn Roc and it served in the FAA. It was not a competitor to the Defiant. The Hawker Hotspur was a modified Hawker Henley. The Roc was a (major) adaptation of the Blackburn Skua fighter/dive-bomber.