First, let me say that I am one of those folks who does use the Game avionics and have no plans to try to learn the Sim avionics because I simply lack the time and do not have a full HOTAS and rudder pedal setup.
Second, let me also say that the A-10C and BS2 Game Avionics are absolute GENIUS. I have been hunting for a decent successor to Jane's F-15 for years and I finally have it in A-10C and BS2.
OK, to the bugs. This is true of all FC3 fighter aircraft. The same thing happens, no matter which plane I'm using and I know that in large part, it is due to the fact that we are stuck with ancient LOMAC architecture for FC and that includes the avionics.
1.) I can use the auto-lock-on key to target a plane and the little red square boxes in the targeted plane, but the green box (in the F-15 HUD) doesn't want to stay on the targeted plane. Any weapons fired at the target will fail to guide about 75% of the time. This is especially true of the Great White Hope, the AIM-7. The Russian aircraft do a little better in this regard. The Fulcrum and Flanker's locked reticle (the green circle) will stay on the targeted aircraft. However, again, most weapons fired will go dumb and fail to guide, about 75-80% of the time.
2.) I can usually switch to and engage a maxiumum of two targets before I can no longer switch to any new targets no matter how much I press the auto-lock-on-to-next-target key. The avionics just go dead. Nothing happens.
Now, I know my concerns are very low on the totem pole because most of the users here use the Sim settings. Just thought I'd mention these.
Or, you could always figure out how to put the Game avionics from A-10C and BS2 in there and I'd be absolutely thrilled.