The guy who brought us Vietnam 65 and Afghanistan 11, plus several other different games (not based on those engines) -- all of which I instantly bought by the way -- has returned to the original engine, now ported into Unity, with Angola 86!
https://store.steampowered.com/app/2233150/Angola_86/
Eight reviews already up by early access adopters, all positives. The game is feature complete, very late beta. Only $10 right now and won't cost more later at full release, for a game with even more detail than Af11. (Eventually the dev will be remaking Vietnam 65 with the lessons and gameplay developments in the two engine-sequels.)
No bugs reported yet in the reviews, just some balancing issues (perhaps) and UI polishing to do.
Can't personally report anything yet because I rushed over here to start a thread pointing to the release this weekend, once I saw it.
Yep...
https://www.grogheads.com/forums/index.php?topic=26969.msg734594#msg734594
Ah! I looked at the threads on the first page of computer gaming, but didn't see it.