Call me crazy but I think it'd be awesome if when you drove over dead bodies (only with Tank treads), they vanished, made a squishing sound, and left a pool of blood with some bone fragments in it. This idea was inspired by playing Men of War, where this is exactly what happens if a dead body is unlucky enough to get in the way of your vehicles. It's gross, it's violent, and I think it would fit great with the game. Maybe not the bone fragments if that's too extreme.

Also, if there was a 'threshold speed' value for when a vehicle can kill soldiers, that would be nice too; because in some mods (like the couple WW1 mods) the Tanks can't kill soldiers because they can't drive fast enough