I’ve added a few track-change comments to your outline. At this stage you should be making progress with the writing. I would think a good way of organising your analysis would be to have sections or chapters dealing with – use of force and international law, origins and legal status of intervention (HI/R2P), past use and controversies (Iraq on UNSC drafting and interpretations of IL (there is a point to be made on the conception of IL as discursive tool, mentioned by Koskenniemi) and the Libyan case at the UNSC is especially important for Syria), then the UNGA and UNSC on Syria. The Syrian Commission of Inquiry is something you should look at carefully and in detail (http://www.ohchr.org/EN/HRBodies/HRC/IICISyria/Pages/IndependentInternationalCommission.aspx) and note this recent development: http://www.ohchr.org/EN/NewsEvents/Pages/DisplayNews.aspx?NewsID=21941&LangID=E