Yes, the two patrol discs are included in SHCE, as well as a third that was never released separately. There were no more patches or discs, so the Commander's Edition is complete. There were, however, several great mods to help make it even more enjoyable, most of them by a modder who called himself Hawk.
Most of his mods (I think all) can be found right here at Subsim Downloads:
http://www.subsim.com/radioroom/down...p?do=cat&id=42