redria
You took a look at your tool, it's hard to describe the tool but it looks like an expandable item spawner, it works by placing it on the location of the final location and it moves around and builds it like a 3D printer, bring the material in the same way everyone spawns in. This steam technology is marvelous, this model has extra gearing cogs and higher steam pressure that allows it to build items faster however the larger the items the longer it take to build an item. It does seem to slow down at times, making it inconsistent in building speed. It also have the power to modify pre-existing items at a faster speed.
You can see each of your teammates(maybe? up to them, watch your back) also carrying the same tool. It seems like it can only work on item at a time but works unassisted leaving you free to do something else where it does it thing. The thing feels sturdy, almost indestructible but remember the reports of someone face being reported that you couldn't but feel just a tad cautious.
Replaceable
Replaceable looks around, bad news, this being an active base, no shades of glass, good news however there's the barrack with windows but just like the door, they are a barrier not made of glass but you get the idea , another good news is that the fields would have a bunch of rocks but with some more bad news, it doesn't seem like any of them would be the right kind of rocks for using as a flint.