Why hasn't the Phantom FGR.2 got the AIM-9L missile?

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@Davinator2006

At the RAF museum in UK you can find a stand where it describes the weapons fitted to the Phantom FGR.2 and there it says that from 1976 the Phantom FGR.2 was fitted with Aim 9L’s witch means that it was introduced 2 years faster than the SKYFLASH missile that the Phantom FGR.2 carries in game.
My question is why isn’t the Aim 9L given to the Phantom FGR.2?

Hello

Aircraft missile loadouts are a balancing factor much like tank shell loadouts are. Whilst everything they could / did carry is open for consideration, it does not mean every aircraft will get every missile it ever did / could have.