The handy man gets on my nerves but then again so do a lot of folks.

He has some good insight and ideas though.

I like the garbage can filtration system they set up, and watching them work on the wood gas generator was just plain interesting.

The foraging is a bit cheesy and contrived. I'd have more than a stick for defense.

In the absence of firearms, the old ways come to mind (spear and shield).

I'm surprised that the guy with military experience had the foraging party so exposed and spread out. If you lose one person to injury or death, then the whole group is in trouble.

Also, fortifying the warehouse with redundant layers of hard defense (physical barriers, etc) sort of how old castles were set up seems like a good idea if you were really worried about marauders.

Samhain, I agree with you on the weapons/defense part. If the "marauders" were a TRUE threat, defense would come first-body, then home.
I also agree with the comments of the hand picked survivors-real world, I HIGHLY doubt you would have such a well rounded group, at least initially. Just for fun, if it were to happen in my community, you would likely find:

a firefighter.
3-4 bartenders
a handful of mechanics
Administrative people (most people in my town commute to Boston for work)-these would make up the majority of the "survivors"
Several active duty national guard or reserve people-all admin: mechanics, medics, paper pushers.
And me. But, I would be a marauder, so I dont really count