I think that we will develop machines that can destroy humans, but they will require continuous maintenance.
In other words, I think war automation will be a thing.
Self repair is a nice idea in theory but not real. In theory, we could make programs that fix bugs for themselves on their own (it is physically possible), but in practice there's no such possibility, and won't be for the foreseeable future. Unless some kind of Deep Developer comes along and blows everyone out of the water by writing code that kind of looks good to the point it's better than what average dev would write.
In other words, I think war automation will be a thing.
Self repair is a nice idea in theory but not real. In theory, we could make programs that fix bugs for themselves on their own (it is physically possible), but in practice there's no such possibility, and won't be for the foreseeable future. Unless some kind of Deep Developer comes along and blows everyone out of the water by writing code that kind of looks good to the point it's better than what average dev would write.