Other than watching "Salvation" a lot lately, Terminator has been on my mind cos I've been blown away with some
customs over at JoeCustoms by Dark Horse. Check 'em out; they're inspirational!
And if you keep in mind the lack of discrimination of targets on the battlefield programming, BATs are pretty close to Skynet's killing machines. Just depends how bulletproof you make 'em. In the cartoon, one shot takes 'em out. But in the comic, they'd walk around with just legs and an arm (carrying an AK-47). Can't wait to see where you take it!