Re: Cowboy Bebop/ Firefly inspired game
This is high tech. I've been thinking of that issue a great deal.
I can use a single straw to hold up a small book, but placed on it's side the straw collapses under the books weight, who knows what we'll have to give away to gain armor in the future. To those a couple of hundred years ago, that might look like magic, especially when you see how thin the walls of a straw are.
When I was in Kosovo with the Army, we were driving HMMWV's . We had these awesome bulletproof windows, they could stop a fifty call as I recall, but if you put your finger on it, you would leave a deep indentation. It had the consistency only a fraction harder than that of a cold bowl of Jello. I could have taken a knife and cut any portion of it out without much effort at all.
My point is that as we advance in tech, things change, some things get WAY more specialized, while giving up all other properties that they have... and to defend a craft against VERY fast moving space debris and ship to ship weaponry we may find that we have to give up the ability to maintain structural integrity when a firearm is used inside said ship.
Looking at the Firefly and Cowboy Bebop as Canonical, the players are going to be using civilian crafts to get around (even Spike's nifty little runner is the equivalent of a race car, and a classic one (read as OLD) at that, The Bebop itself is a seagoing vessel that Jet converted into a space worthy craft.). From a designers perspective, if you are going to get better defense against space debris, why would you even need to be protecting the inside of a civilian vessel from weapon fire. I may change that for military vessels, but I like the effect that it pushes, and that's mainly a reason to "not always go to your gun".
I was going to go that route or the route of weak metals in the 'verse and external shielding, but that has it's own problems, such as if our hacker drops their shields, then you get one shot kills.