i seriously doubt that you will find a line of oils with standard military colors like those you listed. But that's not to say that you can't mix your own using basic colors. Olive Drab is formulated from black and yellow. Neutral Gray from black and white. You just have to eyeball your own mix ratios to get the exact color you want.
BUT... why would you not use available hobby paints of your preferred brand(s). Oils, while extremely forgiving, have quite long during times. Any handling before they dry will mar them. And spectacular finishes can be obtained with pretty much any line of paints. It's all in the user and their abilities.