Jason Voorhees said:
I placed the Arabic comments into Google Translate. They still don't make any sense, very weird. Although some of them where some terrorist code.
Online translators rarely give you anything that makes much sense, generally because they don't take things like grammar or syntax into account, on top of the fact that there are many words which do not directly translate from one language to the next (especially between languages like Arabic & English which do not share many roots).
That said, it's probably not 100% accurate to infer that the comments on this video were made by terrorists who were discussing their network's plans.