You can see how GC works against a submission grappler by going here:
Attackproof Video on Demand
Click on the green "click here to start shopping" button then scroll down to our Guided Chaos Groundfighting DVD and then click the "more info" button. You'll get a free 5 minute video excerpt from the dvd showing LtCol Al working with a high level (amateur) competitive grappler.
Check out Ari's website and
Ari's blog for good insight on Guided Chaos.