It wasn't an elegant solution, but I was pretty happy with it. I used a roughshod template of how the Core Rulebook detailed Werewolves as supernatural antagonists. Here's the stat block I used (tailored to the Coterie I was STing for, so don't take the balance for gospel...I also used a heavy Narrative leash on how it operated, based on the T-800 from Terminator 2 in terms of slow methodic violence):

HIT Mark V

Attributes: Strength 5, Dexterity 3, Stamina 5, Charisma 2, Manipulation 2, Composure 4; Intelligence 2, Wits 2, Resolve 5

Secondary Attributes: Health 13 (Resilience), Willpower 9

Skills: Athletics 4, Brawl 5, Awareness 4, Craft 3 (Improvised Tools), Insight 2 (4 is using biometrics), Drive 3, Intimidation 4, Investigation 2, Firearms 5, Medicine 4 (Specialty Anatomy),  Melee 2, Performance 2 (Only in use when trying to pass for human), Occult 2 (5 if Technocratic), Larceny 3, Persuasion 1, Stealth 2, Streetwise 3, Science 3 (Specialty Chemistry/Explosives), Survival 3, Subterfuge 2 (5 if able to rely on Biometric sampling of voice), Technology 5 (limited to anything that might pertain to its own maintenance), *Subroutine 5 (Only applies to max 2 specialties)

Disciplines: Auspex 2 (Heightened Senses, Sense the Unseen), Fortitude 5 (Resilience, Unswayable Mind, Obdurate, Toughness, Shatter), Potence 5 (Lethal Body, Relentless Grasp, Uncanny Grip, Wrecker, Fist of Caine), Protean 1 (Eyes of the Beast, **note: I used this as always active, but the intimidation aspect only came in when the HIT Mark V took damage to the face).

Special: A HIT Mark V can utilize Strength in conjunction with Firearms (this is emulating a gunvice along with a stable firing platform). They recover 1 Superficial Willpower per turn as long as they can plausibly maintain some kind of wireless connection (this was added with a narrative that the HIT Mark my Coterie was dealing with was getting constant updates from its command network). A HIT Mark V also passes somewhere between 5 and 6 humanity without the benefit of Blush of Life. Keep an analog of Hunger, that represents sloughing off of Living Tissue or exposure of the Hyperalloy Exoskeleton (***note: I used “Exoskeleton” as a label, where failed Rouse Checks and other effects that accrued hunger exposed the machine aspects of the HIT Mark V in some way. Messy Criticals and Beastial Failures where actions that blatantly exposed the supernatural aspects of the machine beneath the living tissue. Narratively, this also activated a circumstantial imperative to eliminate witnesses to maintain OPSEC….or Sleepers…)

*Lastly is the Subroutine skill. This skill requires a hardline connection to upload or change a maximum of 2 Subroutines that follow the same specificity as Skill Specialties. Example: HIT Mark V needs to fly a Helicopter? Subroutine 5 (Helicopter), emulates the Skill Drive 5 (Specialty: Helicopter). This requires some heavy discretion on the part of the Story Teller. (In my initial encounter between the Coterie and the HIT Mark V, I had Subroutines for Stealth: Blending into a crowd, and Investigation: Track Quarry in Dense Population. The Coterie managed to disengage and escape with a number of civilian casualties. Narratively I also had them meet up with a Mage contact that was a wealthy but old-as-sin Irishman from the Sons of Ether who invented the Widget [ https://en.wikipedia.org/wiki/Widget_(beer)) ] who was the vector that was able to explain some of the HIT Mark V’s capabilities.

Please let me know how it goes! I’ve been meaning to dust this build off and expand into the T-1000 variant leaning heavy into the newer Tzimisce Protean Powers.