BUILDING A TERMINATOR: How Legacy Effects created a 1984 Arnold for “Terminator Genisys”!

When the co-owner of Legacy Effects and a disciple of Stan Winston, John Rosengrant first broke down the story elements of “Terminator Genisys” in the aspect of pratical effect needs, there was a section that caught his eye. It was when the Guardian Terminator and Sarah Connor were lugging around a young, deactivated Arnold T-800 Terminator in a back of an armored car in 1984.  Logic dictated to Rosengrant that the creation of this Terminator corpse would best be accomplished with practical effects, so John and his team took upon the task of building a prosthetic dummy of an 1984 Arnold Schwarzenegger. So how did Legacy effects accomplish such a seemingly insurmountable task?