Yeah but as soon as you make a globe everybody wants to go everywhere and given the issues with one area it'll be in the next century (even at the FSX level so I think for a "globe" would be FSX..
But as a shooter? Yeah I'd like that given the fidelity of the DCS terrain mapping, but that's another issue then you get into various areas such as basic gun mods and so on. Overall with the dearth of aircraft able to be brought in it's just a bigger issue rather than just hoping. Then I'd stop playing Arma and go for DCS as I can do what I like, go flying and if I feel like clearing buildings, etc. then it'd be great. But overall it's just not feasible at the current moment in my mind.