FFP!
Adjustments in MRAD
1-6 in a 30mm tube
Zero Reset
Zero Stop
Capped or Uncapped with locking turrets
Fixed Parallax
3-4 Eye relief
Reticle design that can support 556, 7.62x39 and 7.62x51 . Illumination is a major plus. Reticles should be adequate for quick ranging and hold over, but have a good balance of clean reticle and functionality. I can't stand reticles with hash marks or christmas trees up the ying yagn.
Durability vs weight trade off... I want a scope to survive a drop or drag, but not major abuse. That said I'll take a tank over a china cup.