I might need until Thursday to make any edits, but to answer some of your questions.
There already is a history section, it's quite terse but the original history I had in mind was longer and then didn't work out.
We have computers that predict the future and gynoids that use sex as stress relief, compared to that a small computer that memorizes faces and makes tactical decisions is childs play.
The defibrillator section mentions a battery (its very dug in, I'll put a second mention in stats), but there is a hole in how long it operates. Just throwing numbers around but how's twelve hours sound before it needs recharging from an outlet, or replace its primary battery?
The robot takes on a small human shape and has no fancy hover function, so the only real measure of top speed I can give you is Sprint.