Jeez, well, I under estimated the guy to my north.
Just fought through (and lost) my first major campaign and playthrough, and I have to say I'm really impressed by both the strategic AI and the feel of war in this game.
Turns out he was a juggernaut who, despite also being at war with the other major I bordered, was able to send a pretty sizeable infantry force at me. I was able to hold off his main force on my border, and sent a mechanized unit and a whole mg infantry brigade through a mountain pass to open another front, and then watched as the other guy slowly pushed his front in.
Granted I played waayyy too offensively for the amount I was out-gunned and out-teched, and when he brought in a whole light armor brigade against me my damaged and overextended lines melted against the onslaught. I was playing too way too fast and wasn't really stopping to think, and despite already having AT I didn't realize until too late in the war (when I brought everyone back to the capital and turtled and entrenched) that the formations with the AT were on the other pages of the raise formo dialogue. Even still I held out pretty damn good, and it turned into a nasty war of attrition as I started fighting him in every defensible spot I could. My casualties soared from a steady 1k (from my earlier war with the nomads and a few skirmishes with marauders) into the 70k range, and soon I was burning all my PP on "All for the front!" cards to convince my populace not to revolt from the absolutely staggering casualties. That and managing the logistic situation and shuffling lorries around to move troops to the front, really feels almost like a sort of Great War sim once you get into total war and mobilize your entire economy, and I was loving it, even after having my ass handed to me by the AI who kept breaking through my weaker lines and encircling me.
There's something great about cranking up recruitment to max, and playing recruitment push cards to just spam out brigade after brigade of infantry to hold back the armored onslaught of the techogermans who were invading me. I played pretty sloppy, but even still I can tell I put a huge hurt on his economy and the attrition was dragging him out too thin to hold off the other major who was slowly advancing through his territory. This, at least, does seem almost flawed from a strategic standpoint. He lost a ton of ground to his other enemy just to destroy me, which I suppose somewhat makes sense, but if I had played better and actually realized I could build anti-tank and instead of trying to attack, just held the line and fortified like crazy, I definitely could have held him off long enough that the other guy would have started taking his cities (although, at that point, I would still be screwed because the other guy also hated me and now would be twice as powerful as me). Definitely gonna go back to that save once I have more time in the game and experience with large wars, since I loved the atmosphere of that game and the culture I had built in my regime. Starting a new playthrough now, because I understand the game a lot more now. Oh, yeah, that's the other thing. I don't know if there's actually a losing screen, because the game crashed after he captured my capital, but I assume the rest is obvious.
The other thing I noticed is that starting new zones can grow your economy extremely fast, because of the influx of migration it causes that lowers your pop in other cities and attracts more free folk. That and it seems to also gather free folk at the same speed other zones do. Abusing this probably wouldn't end well, but it was noticable that the small zone I had anticpated to found over a cluster of ruins to scavenge, quickly soared in population from mass migration because of the high worker salaries I have and the number of empty worker jobs there. I would definitely say be careful with worker salaries in new zones, especially if they're higher than normal private income, because the zone grew way faster than I could provide food for it and eventually became a constantly unrest-ridden slum that I just couldn't manage to bring back to normal, what with everything else that was going on. But this kind of behavior is also pretty cool in a game.
I would say the game really does feel almost like a planet-based Distant Worlds, what with how the private economy works, since they trade with you, and your traders, which trade with other empires. The in game commodity market doesn't make resources from thin air, anything you buy with credits is imported from other nations with a surplus, and anything you export goes to other nations with a defecit, and if you try to sell too much eventually the market just gets clogged with very low price resources that nobody needs and they stop buying from you. Very neat.
To those daunted by the manual, I would say just to jump in. I skimmed the manual, read the quickstart, and followed the in-game advice prompts and mostly did alright. Granted I love these sorts of games and can pick up games quickly, but I think experience is the best way to get a feel for the systems. I just kinda referred back to it when I had a question about a mechanic I couldn't figure out.