You may want to adjust your expectations regarding scopes, if you think you're gonna be able to hit targets with pinpoint accuracy, then getting a scope won't do much for you.
For me, I set my expectations for scopes to match the realities of airsoft, I understand airsoft guns won't literally be a point a shoot affair, so I use scopes to spot opposing players, and whoever I can't reach, I then call out their positions over the radio.