Spoke to Ameritrade. MMs have what some people call it the "level III" view that individual investors do not have access to.
What Ameritrade told me was that, MMs have full view into all orders.
Think of level II as 2-dimensional view, where as level III is a 3 dimensional view that shows depth of all shares that are backed up in orders.
Therefore, MMs can clearly see the price range of all orders, and they love to take out stop limits on a quick blip drop, and just as fast, the price recovers but you are out of shares...and possibly incurred loss whereas MMs got your cheap shares and took your profit.
You see how this game is played?
Its unfair advantage they have over individual traders.