Well to answer your questions:
Rangefinders: Rangefinders are possible and we will be going for them, they won't really be that difficult to add to the mod.
Scopes: We're going to try and keep all the scopes accurate and we'll try to add zeroing, it will take time and lots of trial and error but that's pretty critical to sniping since you need to conserve ammo rather than guess and shoot.
For people complaining that it doesn't fit in Blockland:
I don't really see how it doesn't fit, all you're doing is slapping a little detail to a sniper rifle and making it actually work.
Shappeh, go on Skype I have an idea.