I know what you're saying but where do we stop with the additional weapons or what if stuff? We have a cutoff point for realism for a variety of reasons. Resources in terms of manpower in the development process are clearly one of them for ED.
As for the realism in a broader sense, the clue is in the name of this thing we do "simulation" - the imitation of a situation or process.
Let's just stick to what we know the aircraft has done and can do and not what it might have done.