Old times classic!!!
Used to play this with my friends a lot, used to wish this has a PvP mode, and I still do.
Playing it again now tho, it kind of made me think, I know this game is not meant to deliver any message, but I always take things one step further. We, humans are like the two sides of this war, we are always fighting, we don't even know what for, and we do this for ages without noticing that we are the same.
But when I noticed something the thought left my mind:
THE TANK BLEEDS!!!