just for perspective
 

there is a bug reported (over on ATAG) where people encounter online freezes when they try to change planes at a base, or change a load-out. I've been afflicted with this bug myself. The only work-around for me is to accept what ever default plane is at a base, or select another base. When I try to change a plane I usually wind up doing the old keyboard dance (ctl-alt-del). It's a some-times-OK-some-times-not thing. That said, I praise the work Team Fusion has done. The sim is really more beautiful now, and I'm very happy to be flying it.
Flyby out

It is my understanding they are addressing the AI behavior described in the hotfix that will be coming for TF4. No idea of timeline, I think those guys are taking a bit of a well deserved break before getting back into it full bore.

Yes it makes offline flying somewhat strange, when one is chasing an AI and it just plummets into the ocean or terrain... I am still flying my offline campaigns and just bearing with it until they get it corrected.