NEVER underestimate your enemy. SpecFor does infiltration and special ops quite well, but ISIS/ISIL/IS is not a small organization and has captured quite a bit of resources.
Regardless of what ISIS has, you ALWAYS seek the better tactical and strategic solution. Going into a ground war without air or artillery is amateur and will get the wrong people killed.
So, I defer to your expertise.
Max does have a lot of time over there, maybe he has thought of some of this, I don't know.