Great to hear from you.
No campaign is everyone's cup of tea, but I had a lot of fun playing "The Aftermath". It was fun blowing up lots of ships in big fleet engagements with a epic scale storyline (one where the fate of the galaxy hangs in the balance). I certainly agree with Lepanto on that part.
I also agree with him on a point of constructive criticism. There's a number of missions where the same enemy wave repeats itself for a long time. I'm not telling you to take out those missions; I would merely suggest shortening them. To use one mission as a specific example: the mission where you escort an AWACS through the atmosphere of Shivana lasts about 17 minutes (defending it against waves of fighters and bombers repeating). It didn't feel like it needed to be that long; in my opinion that mission would have been fine at about 10 minutes or so.
Another example would be the mission where you're escorting a shielded captured Shivan Rakshasha through the remains of Capella (I won't say more about the mission because that would give away a lot more spoilers). That mission lasted around a half hour and was defending against tons of waves of Maras and other fighters. Cutting the length of missions like that would make them more enjoyable.
I could give you more suggestions if you like (though shortening missions like that would be my main suggestion).
Some of my favorite missions were the capital ship missions. Mowing down destroyers left and right is fun; those missions don't need to be shortened.
Like Lepanto said, check this thread:
http://www.hard-light.net/forums/index.php?topic=87904.0Cyborg17 did a ton of work to get "The Aftermath" playable on the current MediaVPs and FSO builds. I'm pretty sure he wouldn't mind you using his work as a starting point (though I'd ask just to be sure).