Senior Game Designer Bernd Diemer giving a walkthrough of a demo level to Crysis fans at the 2007 Crysis Community Summit in Frankfurt, Germany. This is the same demo that toured numerous gaming events including CES, GDC & Cebit.
The old Predator-style cloak mode is shown in this clip.
Filmed by inCrysis in March, 2007.
More info: http://www.incrysis.com/index.php?option=com_content&task=view&id=313&Itemid=2