So I was recently toying with the loadouts on my F15I and thought it was strange full tanks of fuel with conformal tanks attached seemed relatively low at just 33 minutes. I went and dusted off my US F15C and they are modeled just fine. checked out both in X-ray and noticed that they aren’t even modeled on the Ra’am.
Both F-15E and F-15I CFTs are non-functional when equipped with missiles due to a bug. Several reports have already been raised, but no tech mods have looked at them yet.
I think, previosly you could choose AIMs and fuel tank on body simultaneously, but now game doesn’t allow you to do that, so I think it’s the reason there in no fuel.