The abandoned steel mill is a reference to the demise of the terminators in Terminator 2: Judgment Day (being melted in a vat of molten steel). Much like the T-1000 in the movie, B1000 will "melt" into a puddle when damaged and then reform until killed.
The B1000 carrying an UZI is a reference to the terminator's "purchase" of the weapon from a vendor in the first Terminator movie.[1]
