The 600 series had rubber skin. We spotted them easy, but these are new. They look human — sweat, bad breath, everything. Very hard to spot. I had to wait till he moved on you before I could zero him.
The rubber skin, or synthetic latex[1], was among the first type of infiltration disguises used by Skynet on the Series 600Terminators in order to pass off as a human being.[2] As the infiltration sheath was a prosthetic rubber, the Terminators were easily spotted by resistance members, thereby making the disguise and infiltration attempts worthless.[2] This has led to more advanced methods of infiltration, such as living tissue, which would be used on later Terminator series and types, such as the T-800 Terminator.[2]