Notes on the reactive armor: It'll protect you from low-impact fatal shots, like the Grey's tendril or the Razor Queen's darts.
Other than that, you're dead.
It's actually an epic-level improvement over Mud and Blood 1, a few years back. See, back then, urbanprophet just gave you a set number of soldiers, who were essentially meat. There are massive improvements here, but good GOD does urbz love the sandbox genre. By which I mean, sometimes you have it easy, and sometimes you get brutalized 5 seconds in.