Pawel's point is well made.
There have been models built to do this--Butch O'Hare's last plane comes to mind, as do the planes of a couple of "blue max" winners.
For things like the VC or the MOH, there's not usually enough information on the circumstances to pin down enough to model in a logical way.
For example, SSgt Geo. Keathley (Texas A&M '37), he earned the MOH for actions on Mount Altuzzo, Italy, 1944. he organized two remaining platoons of his company and stood off 3 determined German counter-attcks in Company strength. One of the many actions noted in his citation include crawling among the dead and wounded to get ammunition for his beleagured platoons. Despite having a mortal grenade wound, and being in the middle of a firefight, he stood up and shot back at the enemy. Reads dramaitc, but, visually--maybe bit grim. Lost of mud, dead and wounded bodies.
Lt Turney Leonard ('42) was assigned to a Tank Destroyer Battallion, but had been seconded to the 112th IR when that unit went int0 the Hürtgen Forest. After the Company lost all its officers, Lt Leonard took charge and led the holding action against the Germans. He had been wounded in the left arm on the first day. On the scond day, a mortar round severed it entire. He asked to be left behind in a foxhole with a sidearm rather than be captured when the 112th withdrew.
Dramatic, but, visualy grim.
Oh, and the German who found Leonard's Aggie ring brought it back to Germany afterwards. His son, eventually a Bundeswehr Oberst, went to the trouble in the preinternet days of contacting the University and returning Leonard's Ring. The Colonel's son attended A&M on an engineering scholarship and graduated with honors, and now wears Ring of his own. Stirring stuff--but really hard to build into a diorama.
The skipper of USS West Virginia earned an MOH at Peral Harbor--again, dramatic, but complicted visually. John Basilone--similar issue.