User blog comment:Damac1214/New Call of Duty: Black Ops III Teaser Released - "Ember"/@comment-25145782-20150424025929/@comment-3171236-20150424041912

Not exactly fighting as non-humans, more like humans who have their range of abilities extended.

Think of it like a gun, or a fighter jet. Humans can't naturally shoot projectiles faster than the speed of sound, nor can they fly and drop 2,000 pound smartbombs on an enemy's army.

Human legs can only run so fast before they reach their limit and the muscles tire quickly, while prosthetic robotic limbs could potentially run faster and longer. Soldiers could cover over 50 miles in a day, and still not be tired.

Human eyes can only see so well in the dark, which is why we developed infrared and night vision instruments. Augmented eye lenses (or chemicals, prosthetic eyes, etc) could give the human eye an extended range of vision, so the wearer would in effect have superhuman eyesight.

Finally, you could be doing things like attaching neural implants to a human brain. Normally, humans have to access electronics through a physical interface, such as a keyboard or a touchscreen. Neural implants could not only allow a user to control electronics with their brain, but these implants could feed information directly to the brain, thus each soldier could be intimately connected in the battlesphere.