I am wondering if this issue is related to TonyD's Red side missile issue.

When attempting to attack Red missile group XuM I am unable to select it as a target. The target missile group has 36, KH-101 ASuW missiles in it. The is on the northern part of the map up by Petropavlovsk, Russia

When attempting to attack the missile group I am unable to select it as a target for Air-to-Air missiles. It doesn't register as a target. I can select the missile group with the mouse and see it's Group ID and get the missile groups info in DonT's AI window.

In the opening screen of the saved game the unit Window shows the location of XuM,

I'm not sure if the  issue are is, however after running TonyD's test scenario I feel that they are somehow related.

I have seen the missile issue before where I couldn't attack missile group and then later on in he game I was able to attack the group successfully when it got closer to it's target.

Let me know if you have any questions or need any additional info. The latest edition on my Fictional db is included in the Zip File. 

HC Issue.zip

Are you attempting an intercept with an airbourne ac group or launching a new group from a base.

In this situation we've never been able to launch a new ac group to attack a missile group. You must launch it as a patrol then do an intercept.

If attempting an intercept by an airbourne group then I think it should at least assign it as a target.

Have you tried the same thing in a manageable sized scenario?

I tried using DonT's AI Box to destroy a missile group that I couldn't launch missiles at. When just selecting the unit in the AI box the GE crashed.

I tried to uses a small scenario to duplicate the issue to no anal.

I tried removing groups from the current save game by using DonT's AI Box and was unable to duplicate the issue.

Noticed something interesting on this issue while playing my scenario. If you let the GE launch missile at the same missile  group that I tried to shoot at, it will launch missiles at the target.

What is the difference between what the played and the GE launching missiles?

How is this possible?