I have Lock-On: Flaming Cliffs 2. It's great, but not NEARLY as detailed as the DCS series they're pumping out now.
Just got done figuring how to navigate in the A-10C, and now I find out I need to learn all about JTACs??
Not to mention how to deploy each different weapon, then gun's PAC system, etc. which all take about 3 weeks to completely understand.
You get the idea.