You ain't serious now i hope, for your own sake?
Incorporating an fps perspective as advanced and well designed as you make it sound would be a gignormous task, its not doable for one game basically your asking for something like ww2 online + the sims + gta 4 + RO2 + IL2 + a life simulator(and god who knows what else)... There is a reason why you can't fly planes in RO, the same reason applies for not being on the ground or in tanks in IL2, they both go for realism and combining them both in a realistic manner would be extremely hard and probably a waste of resources.
Think of it like this, you bail out, so now all of a sudden you expect a life simulator where on the ground the game all of a sudden is of RO2 quality? It just doesn't hold up dude, for one the game itself would be gigantic, would it be fun probably not if its spanning a world just as big as our own. Would it be detailed.. no it wouldn't especially not if mappers are to sit and mapp the entire world in RO2 quality which would take.. literally FOREVER.
The purpose of the game is to be the most realistic ww2 combat sim and it does it very well, if you want to multi task you end up with something like Battlefield arcade handling of everything on small maps with U turns and obviously no realistic depth what so ever in anything.
This game is really really deep on the ww2 flight combat side, which is precisely what its going for, a depth far beyond what the original IL2 has with very improved fm,dms,details,physics,weather, graphics,sound etc. Oleg and his crew are very known for being extremely picky about details, they've spent several thousands of hours into research for this product.
I hope i don't scared you but seriously if your into flight sims and more precisely ww2, there is absolutely no reason to miss out on this sim which has been in development for over 6 years, supporting products like RO2 and IL2 keeps the PC crowd alive