Acog over reflex on vargen, stauger, kallos? I go back n forth with these two more than any other. All preference. Acog generally prohibits hip firing much more than reflex but, iirc, sig9 sight sizes r same for these two.
I vote ACOG, it is better suited for some Assault rifles, while RS is most for SMG's, the exception would be Stauger as it's range is better than sig-9, then I would equip sig-9 with RS, or a laser, or even a silencer, since it is the best for CQC; while the staug would fit better with an ACOG sight for mid-to-long range targets.
On rifles, I would say the (ugh! [I REALLY hate the alt name]) "Ivanna" would be better with ACOG, and RS would fit the "cuerno de chivo" better.
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