What difficulty are you playing at if I might ask?
It's the middle one.
If you do manors by now and while not having promotion 2 i think you are massively behind in research.
I guess I failed to communicate here. I had more than one run and I got promotions right at time in some of them. It's more about me being unable to get promotion 2 this one last time. And while I don't have it in this particular run I am starting to think about all of the chores waiting ahead and I don't want to play it further while not wanting to drop it yet while imagining all of cool opportunities if the mod was more freestyle friendly.
Night + throwable light sources are your best weapon in such cases. This tactics also requires skills, but makes such missions doable.
30 beetles != 30 zombies.
i managed manors before and managed beetles. The tech behind is not a problem. I'm crying about the othere thing. The way I see the problem: there is a point in any mission when you just did it right and then there is no point in more enemyes after this point. I killed 25 of opposition - time to stop, but no - its time to search for the last one moron, but there are 5-25 of them. So, it becomes boring and stupid mistakes follows. It's a chore and it feels like a job. in this case beetle, zombie, cultist - all the same if they can one shot your guys. Beetles, animals in general, are the worst - they don't beeline like zombies seem to do and they never surrender. While being worth grinding.
So, I want tools to allow me to move on if I score enough of something. I suggest more liberal promotions, so I don't wait till the right mission appear so I can gather the right fancy hats dudes. Or allow me to autopass promotions when I have dead, or at least living aliens. Or maybe if I score some great number in mission. I suggest maybe political/industrial way to do things - allow me to pay someone else to catch at least some fancyhats and allow me to do industry in general. Atmosphere-wise, I want more obvious in-game suggestions about what to catch. Not tech-tree suggestion, but in game. Again, when I got an alien corpse, Council, we maybe can move on from the cultists plot. Lastly, I suggest to add ability to buy veteran troops like you may do it in Xpiratez.
TLDR: generally speaking I want the mod to be more flexible and more clear in promotion department. I want industrial/economical/political ways to expand XCOM organisation. And the last, but not least: less grindy and less obligatory missions (more of my dudes, less of their dudes will be my suggestion).