Depending on your reading you are capped at +4 armor per limb.
Edit.
Just realized that Imaging Scope use the general rules for Vision Magnification (+2 AR at medium, far and extreme range) in addition to Imaging Scope specific rules (deny target from gaining edge based on DR, must be used with Take Aim action).
p. 260 Imaging Scope
The classic top-mounted scope that includes a micro camera and vision magnification, along with...The Take Aim Minor Action must be used in order to gain the benefits of an imaging scope, though the dice pool bonus from that action is not gained for the first action of use. When you are using an imaging scope, your target cannot gain Edge by having a higher Defense Rating.
p. 275 Vision Magnification
Attack Ratings for Medium, Far, and Extreme ranges are increased by 2, assuming the...
I think that the only change needed here is that you cannot take aim with an imaging scope at close or near distance categories.
Good spot, but I somehow doubt that this is intentional. There is no page reference from the Imaging Scope to Vision magnification and vice-versa. Given that we are looking at a CGL product, itīs probably yet another case of one hand not knowing what the other is doing. Also, that (additional?) effect of the Scope still doesnīt fit the purpose. I suspect that it was originally conceived under the premise that Sniper Rifles would have lower Attack ratings on extreme ranges. They donīt, so
now the effect is only usefull for snipers when "sniping" from 3 Meters afar or when the target is extremely tanky
So why not throw that whole kibosh (along with APDS Ammo, because
holy shit what were they thinking?!) in the errata/houserule machine and make something out of it that at least remotely resembles the actual purpose of these items?
A humble suggestion:- Vision Magnification: When used with the Take Aim Action, increase the AP on Medium, Long and Extreme Ranges by 2 in addition to any other effects of the Take Aim Action.
- Imaging Scope: The same as Vision Magnification, plus the wireless effect (sharing feeds with team members)
- APDS Ammo: No reduction of the Damage Code, no change to AR. New Effect: Your target cannot gain Edge by having a higher Defense Rating. (So basically, the previous effect of the Imaging Scope)
Apart from that: Typhus, I donīt really think that your Cheeselord is
that cheesy, maybe apart from the Cyberlimb Armor. It would still be a good idea to put a reasonable cap on Cyberlimb armor, but its not devastatingly, game-breakingly cheesy that there isnīt one. At least not compared to 5th Edition, when Cyberlimb Armor contributed to massive soak pools.
Even when no Edge-Denying gear is used against you (Like the imagining scope, although that effect doesnīt really fit the purpose...

), you can get a maximum of 2 Edge per round because something something
balancing. In fact, itīs these kind of builds why I
donīt like that Limit, because it basically means that a huge portion of the "cheesy" bonus armor mechanically disappears once you reach that limit and continue to recieve fire.