Well, we certainly need some upgrades, starting with some EMP shielding, for both Android and the hotel itself.
Turrets would be interesting, but I would be worried about being hacked, and having someone use them against us.
Information is a challenge right now, with the internet being watched so closely, maybe the fairies would be better, but that depends on if Archon has access to heat censors on most of the cameras. This could seriously limit what they can do right now.
Sanctuary also needs an expand, as I said earlier, we only have one free bed in there, as far as I know, and we need to save more than just Lika.
You left out Maria, she is our other information asset, who might actually be our best option for intel, though she is going to have trouble around F&E's dad. She got lucky there last time, that won't hold up forever (and frankly, they need more practice). That said, with Archon again, and AI facial recognition, that could also be a problem now.
We are at quite the cliffhanger. Lin might even have trouble going out, if someone or something recognizes her... Many lines were crossed last time, big things are happening, and we are along for the ride.