I just want to share that someone recommended AMC TC to me some time in late 2016 and I fell in love with it at first sight, and I played it almost nonstop for a good long time. It has problems but there was enough stuff I liked that I remained hooked. I am not exaggerating when I say I am looking forward to Episode 3 as much as or more than any upcoming paid game, with only a few exceptions. I've played through Eps 1 and 2 multiple times (including the second-hardest difficulty to get both secret endings) and all the EDF missions at least once. If you don't mind I'll share some thoughts below.
I am genuinely interested to see where the "main" story with the Beyonders goes. I think the dialogue between James and John is funny, and I like Sangluss's "voice of reason" dialogue as well. I would really like to see a Merlijn-centered level though, and I'm aware that people have come and gone throughout the project's history but I'd like to see a bit more with the other "minor" characters as well (as of now, I have been treating the Snowfall map as "Geoffrey's level", only because there's a poster of his character in one of the residences). The game being hub-based and persistent... I enjoyed that aspect a lot more than I thought. The hub even reminds me of my favorite console
For my favorite levels... in Ep 1, probably the Rusty Nails one since I liked exploring the ghost town, though the Mikko Sandt level in the mountains had my favorite music track of the first episode. I did also really enjoy the Ganymede base chain of missions. For Ep 2, this is hard because so much of this one was gold to me, but if I absolutely had to pick a favorite, it would be the flying ghost ship with Micky due to how epic it was (I took this level as karma's apology to me for having to play the terrible airship level in Blood 2). The early missions set in Asia were also great, and as far as I'm concerned, the first half of AMC Ep 2 is the real Shadow Warrior 2. Also, the final act on Mars was excellent (and Mikko's level in the TV station also has my favorite music of the episode, the faster paced track once you get to the TV station). Favorite cheesy one-liner is a toss-up between James's "Can we fix it? No, it's fucked!" and Highwire drunkenly singing Korobeiniki.
As for things I didn't like, it's mainly technical issues. I'm aware it's a free mod for a super old game engine, so it didn't bother me too much, but some areas run at pretty dreadful frames. Off the top of my head, the specific areas with the worst performance were the oil rig level in Ep 2, and any room with lots of broken glass on the floor (example, the office suite in the flying ghost ship). Also, I am playing at widescreen resolutions, and on the higher difficulties, the lack of crosshair does make gameplay more annoying as a lot of the weapons are off center (but still playable and beatable). If it matters, I play at 1920x1080, and I'm playing this with an FX-8350 (4.0 GHz), GTX 1060 6GB, and 16 GB of RAM.
I can also see how a lot of people would take issue with the voice acting but I understand you are not professional voice actors and I think the cheesy voices really add to the game's charm.
For "bad" levels, honestly the only one I truly hated was (surprise surprise) the jungle map, but I appreciate the visual splendor and I've beaten it three times, so I learned to tolerate and sometimes actually enjoy it. I do remember not liking some of the EDF missions but I took them as just a bonus.
I did experience some pretty bad bugs though. I've been lurking on this forum for a while so most of what I've experienced has already been posted (example: picking alternate weapons for a character, starting a mission, and having only the default weapons) or already posted and fixed (missing medkit upgrade in the first map). I do want to say that the absolute worst bug I've experienced is when I buy guns from the arms dealer behind the waterfall, and after doing a mission, I'll not only not have the gun I just bought (meaning grinding for cash was for nothing, not a good thing to experience in a game), but I'll randomly have other guns that I for sure did not buy. But the worst thing is this caused me to also lose all the guns I found "in the wild" as pickups (examples, James' Auto 5 shotgun, Zaxtor's Galil, etc). For most of them, I could just replay those maps and re-pick up the guns, but this also made me lose Rusty's special revolver for pistol-dueling his level's boss. To get that one back, I had to edit one of the text files to take away the "honorable duelist" achievement (forgot the exact name) so I could get the boss to drop that weapon again.
Forgive me for being a cheat, but while I was at it, I just... gave myself enough funds to buy all the buyable weapons while I was at it. My in-universe explanation is that one of the Cycloids' captive women was a billionaire and she made a healthy donation to the AMC cause after her rescue. I assure you that I had already bought all the base upgrades and research upgrades with legitimately-earned game money, and I restored the text file afterwards so I had the original amount of money as when I started. My apologies, but I was pretty angry at losing stuff I earned legit (note: still can't buy Mikko's alternate plasma rifle, the one that requires scanning a QR code on the Moon, but I won't lose sleep over it).
Overall this is my favorite Duke mod and honestly my favorite mod in general, and I've played some pretty good standalone mods in my time (STALKER: Call of Chernobyl for example). I am looking forward to Ep 3 (and 4 and 5 eventually) and I just wanted you to know I appreciate all the hard work that went into this mod.