Biggest differences as to why I'm not in favor of ADS for precision weapons that would traditionally use a 2x or greater scope:
- There's a distinct inversion and subversion of usual practice where rather than leaving your foreground center-view fully visible and your background peripherals translucent and obscured, your foreground is partially visible - obscured by a fully opaque gun model - and your background peripherals are next to impossible to gauge because, while not blacked out, motion blurring completely fazes out any notion of peripheral vision.
- Presentation. All of the overlaid HUD elements and intricate in-your-face gun models are not something I need, especially not in the case of the Light Rifle's peripheral glowy emitter scope things blocking off the peripherals of what's otherwise the most faithful precision weapon scope, Sniper notwithstanding. The transition between FOVs is also fairly jarring and the effects piled on top of that ultimately serve to slow down the mechanic itself.
For precision weapons, I'd much prefer a traditional scope because it allows you to zoom in faster, still gives you nearly full view of your screen real estate, and the FOV modifications are made much less blatant. It kind of ruins the magic for me and makes me feel more "tunnel vision" than "focusing on target." I also used traditional scopes to gauge out peripherals and enemy territory just as often as I was trying (and failing) to headshot people. While it wasn't 100% reliable now, it's now mechanically impossible to view certain areas at the forefront unless you move where you're aiming your gun - and zooming in with an ADS Battle Rifle blurs the edges to the point where I have to be physically aiming at a target to see what I want to see.
That being said, I think Smart Scope style-over-substance ADS would be fine for automatics or weapons that otherwise wouldn't have a scope beyond the built-in "visor zoom" thing, such as the Needler. Improved spread needs to go, though.