Military Sci-Fi
To drill down on your original post:
What constitutes near-ish future?
50 or a hundred years from now might offer some interesting issues. The wealth gap creates interesting asymmetrical wars as either revolutions, terrorist actions, or wealthy vs poor nations. Extrapolating from current trends in warfighting automation the use of drones, remote tanks, AI control of realtime battlefield data being driven out to troops on the ground (if VR controlled proxy drones don't replace human grunts). Looking at it through that lens, it might be more interesting to look at the opposition as player characters.
A Martian colonial revolution seems like it might work well for that, although thin air and cold are going to make drones a far greater advantage. Perhaps some kind of indentured human with surgical/genetic/cybernetic modifications to adapt them for life on Mars? Alternatively a more classic local rebels fighting the small, wealthy and remote Earth based government or corporation? Both of those ideas need a lot of work - the whole augment thing feels like it doesn't jive with the rest of the technology. Why develop all this augmentation when you have perfectly good proxies? Evil overlords just feels done to death. With some work either might be made much more satisfying. One ting that might be particularly cool is leave out the augmentations and let you rebels have to be brave, desperate and smart. Push them right to the wall and squeeze.
Dragging it farther into the future than that can raise the interesting post- or trans- human questions. What kind of combat sleeves get built, what becomes of troops as you keep dumping them back into new, synthetic frames? What's there to fight about? In a world where completely digital people are a possibility, what's cyberwarfare look like? Things like Rogue Trooper fit well in this kind of setting.