Variable Zoom Scope

Someone is finishing off the Bradley at Launch Site, and you are watching from a ridge far outside the fight. At 16x you can tell who is looting the crate and what they are wearing. When one of them runs your way, you drop to 4x and take the shot at a sane distance. No other sight does both.

That range is the reason to want it over the fixed 8x scope. On an L96 it covers scouting and sniping in one slot, and on an M39 the 4x end turns the rifle into a marksman gun for mid-range taps.

The catch is getting one. Nobody can craft or research it, so every copy comes from a crate or a trade, and a found one gives you a scope, never a blueprint. The 8x is different: learn it once and you build it at a Level 3 workbench from high quality metal. For a group that loses scopes on every roam, the 8x is the one to mass-craft.