My thoughts on this deck...
The artwork isn't bad, really. But it needs refinement. Have you ever seen computer-generated artwork that blatantly looks like computer-generated artwork? It never looks good when it's moved to print media. Yours, I hate to say it, fits the bill. And I'm not even getting into the little design flaws, the most glaring of which being the non-uniform indices from card to card...
IndieGoGo is not the best place to fund your deck. They've had few successful deck projects and the way in which they handle funds is suspect at best - and this isn't even factoring in things like "flexible funding." I once backed a fixed-funding project on IGG which the creator canceled shortly after launch. I learned that IGG had already charged my account for the pledge and was holding the money - and they didn't plan to return it until the project itself lapsed, since they don't allow creators to cancel projects! I made a complaint and they relented, refunding my money in a more timely manner, but it's not an experience I'd recommend to anyone.
The idea of making the deck plastic? BAD. It becomes prohibitively expensive. Wait until you're an established card designer with a few successes under your belt and perhaps people will be willing to back a $20 deck of cards from you - but I don't see that happening now.
Refine your idea and your art a little more. This forum's a good place to do that.
Lastly, an important piece of advice. Military decks have been done before. It's not quite at the level of a cliché just yet, but it's slowly getting there. Zombie decks, steampunk decks, "minimal" decks - there's been a lot of decks made in each of these categories. If you want to tackle a concept that's been done before, you need to do it in a way that will stand out head-and-shoulders above what came before it, or else it's just another "me too" deck. Think of it like this: we all remember which team was the first to climb to the peak of Mount Everest - but practically no one remembers the 12th, the 40th, or the 183rd. If you aren't the first, you need to be the best, or you need to be the first in a new way - for example, if the 12th team to the top leapt off in a wing suit and flew the entire way down, they're no longer the 12th to the top: they're the first to reach from top to bottom by air and most likely in record time, as well! Same thing if the 40th team up held "Burning Man Nepal" on the summit, complete with frozen porta-potty...
Simply put, what will you bring to a military deck design that hasn't been done before?
Oh, one last thing - be careful about US Army designs. Jackson Robinson's "Army Deck" is officially licensed from the US Army. He (or his lawyer) might have something to say about your designs if you encroach on his IP territory...