My favorite thing done with the mod was ADD ALL THE STUFFS I'VE MADE like the Thor, Partisan and Huit along with various other goodies and one upcoming thing that you'll all splooge yer nerd panties over.
Best Dev Team Evar!
I love you for making the Thor, I never really liked that mech in previous games (which for me, was MW4 Vengeance/Mercs), but the Thor B has been my "training wheels" heavy to learn this game, and without it I would still be trying to find a niche I like.
So thank you personally for that mech.
Other positive things...
I could go on forever. I first saw this mod when looking for the MW5 trailer again on youtube and seeing some videos for this game on there. I bought Crysis, and just recently, a $900 computer upgrade almost solely to get better performance while playing this mod.
I have recommended this mod to all my friends, and there are now at least two of them (my roommate included) who play on a regular basis.
Specific things I like:
The visceral feel of the vehicles, from the mechs to the ASF. They all feel different, unique, and most of all, natural. Mechs feel big and stompy, tanks feel heavy and deadly, asf feel fast and nimble (except the shiva, she's a fat cow, but I like her anyways!), etc.
The core explosion effect. I think the first time I saw that in a video on youtube I creamed myself a little.
The c-bill system - While it has its flaws, I think it's an excellent approach to the game, and is very fun to play with.
The missiles - LRMs, MRMs, SRMs, they all look and feel just like they should. Especially the LRMs. Man I tried to play MW4 the other day after playing this, and the LRMs in that game just felt "wrong" after experiencing the work you put into the missiles in this game.
I could go on, but I'll leave it here and come back with more when I think of them.
All in all, thanks for an awesome game!