If I do end up expanding the project into a full game, I probably would do so by making the battlefield and what happens in it more interesting and varied. I would lean harder into the "participator" appeal, which not many games try to accomplish. Being a neutral party and experiencing the chaos without being directly involved in it is what I think games don't do often and some playstyles in multiplayer games were born BECAUSE of that desire, like being friendly in shooters. Because of that, I'd probably stay away from player objectives - you're a flag, you aren't helping the team as much as you are a goal, one part of a giant simulation. The game would have a bit of a different appeal, yes, but I think it's an angle that's still fertile ground.
Thanks for the comment still, I very much appreciate it!