Just wanted to give you a status update.
I have a C&C 4.12 version running in beta now. Needs some more testing (slipper will help me with testing the nightfighting units, if someone profoundly familiar with things like AFAC, RESCAP, SAR etc - stuff that I never use and don't know the look and feel of - wants to volunteer for some systematic beta testing that would be great.
The problem is burried deep in a new - and admittedly fantastic - feature of 4.12. The game now checks (for the AI), when it determines enemies close, whether or not the AI could actually physically see these. That is, if there is a clear line of sight with no obstructions like clouds, or terrain, or a tailfin, or darkness.
Some C&C objects employ routines which in the 4.12 context are now subjected to these visibility checks. And that is of course a big problem for say a radar - where the whole point is about being able to see beyond the limitations of a human eye.
I think I have found a solution, but there might still be more to it...
In all the bugreporting and discussion about C&C in 4.12, please understand that there were bugs and issues with it before, and that these need to be addressed separately. All that's happening now, is making C&C work in 4.12 as it did in previous versions. Not more, and not less.
cheers
sputnik