The envisionment of SIN is to bring you what was promised by GSC for STALKER: Shadow of Chernobyl, instead of the gutted retail release we were left with. SIN aims to cover every aspect imaginable from gameplay intended to genuinely scare the player, to graphics for the absolute best visual experience, cut mutants, absolute realism, optimisations, stability, and a complete game mechanics overhaul, all without breaking the story. The idea is to present the player with a complete retail experience for the purist that liked SoC but wished it was far more fleshed out. In no way what so ever does SIN try to be like old beta or alpha builds of SoC, SIN aims to enhance everything SoC already has and give it continuity with CS and CoP - nothing more, nothing less.
In no particular order, reworked scopes. I've done things a bit differently so heres a quick description. "Reflex" type AR scopes will give you a good zoom but you will have to deal with weapon recoil more. Sniper AR scopes are a middle ground between reflex and actual sniping scopes, you'll be able to get a cleaner shot. Sniper scopes are the "big daddy boom", classic one headshot one kill. Scopes not pictured (because I don't have the weapons in this gamesave yet) Guass, L85 Susat and FN2000.
The scopes are based mostly on various kinds of the excellent Gnomus scopes, modified for a more true to life perceptual look (I've held many of the scoped guns in TK "zoomed" in real life) and general texture tweaks to help add a little something such as lens scratches.