Managed to add you, you got here just in time.
Our story begins in an unspecified place. A heavy, supernatural fog rolls in. People's nightmares become real, and those nightmares seem to be getting worse. What's worse, the fog seems to have a mind of it's own. It's drawn to activity, and seeks out people. There are rumours that a place called Sanctuary is free from the fog. It's a long shot, but it's the only shot we have.
Luckily I've "acquired" an armoured train. Unluckily, it doesn't hold enough fuel to get me to Sanctuary.
I already described the game in the OP, so I won't repeat that here. Instead, I'll go over the basics of how the game works, and go in depth into mechanics as it becomes relevant.
This is the train cabin, and is where pretty much the entire game takes place. You move around using wasd or the mouse between three (i guess technically four) workplaces.

The desk is where you manage power, cargo, and passengers.
The computer where you manage messages and deal with things to do with outside the train.
The cab where you plot your course.
And technically I guess the bed counts too.
We don't start with any passengers, so I have to send up a flair and see who responds.

Moviebob, Null, Spoony, Snake Plisskin, and a 40k Space Marine. Nobody brought anything, you cheapskates.
Not much happens early game. I order some defences built, tune the radio to survivor FM, and set course to the nearest town at medium speed. For me, it's a couple of days of waiting around, but something is going on the carriage. For whatever reason, our current team five decides Moviebob is the best to lead them despite being completely useless. Over the next few days, there's clearly something happening back there as the political pie chart moves around before settling on optimistic superstitious.
Soon we are hit by our first attack. Spirits. Not the drinking kind either.

Things go well.
We arrive at town. Our first mission, a raid on a library for supplies and survivors. This screen likely means nothing to you, but here's the battle plan.

Basically, you can order each guy to do one of two things. Search or Guard. Search is self explanatory. You search for supplies. Guard defends people, but it's main use it to shout for survivors so you don't have to go in the room.
However, there a time limit. Run out of time and the fog gets angry and will start to pick off people in areas of high fog. The longer you stay at a given stop the less time you have at each following raid at the same stop.
To buy more time in the fog, you can turn off the train's engine. The problem is this drains the battery. If the power goes out, people on the train start to disappear, and generally bad things happen. Since we're going to be here a while, I choose to turn off the engine for the first raid. The plan is simple, null is the one going to the north of the building because he's fast, and his radius allows him to search both rooms. The rest search the main rooms, and the lolcows search the entrances because they're slow.
Okay team, let's go.

Off to a good start.

Good stuff. Got the supplies, got the survivors (the little dots, 2 are left behind) and leaving the building with lots of time on the clock (the white one) with 40% power to spar- ...guys. ...who is still in the building?

Finally he starts slowly strolling towards the exit. Lights are flashing, alarms are going off, power is at 10%.
And then he seems to get lost.

The last power light is off, time has been at 0 a while.

Fuck.
As soon as the mission ends, I sprint to the front of the train and turn the engine on, so I didn't read or get a screen shot of the results.
But ...we seem to get away with it. No one dies from the fog or power cut. The slow guy got lucky, and I think the power cut didn't kill anyone because everyone was outside the train during it.
And our reward is ...a bunch of normies.

They form their own faction in carriage 2.
The subsequent smash a grab raids go off without a hitch.
I set course for "anywhere but here" and go to sleep. You guys don't get to sleep though. You've got to build me things.
We're attacked by wasps that night. I didn't get a good picture of the attack. Both carriages don't take it well.

I send one of the normies who's good with medicine into the carriage 1 to help heal the people there.
Then there's more bad news. The only way forward is through an army blockade, and I doubt hanging around town stealing scrap and leftovers until they move on is a wise move.
Next time. Ramming speed.