The Church: Christ's Body "Mission & Purpose"

What is the mission and purpose of the church?  To be brief let's just say it is to aid God in the restoration of humanity and creation.  Apart from creating a space for believers to fellowship, worship, and be ministered to individually or as a family. 

But as a church have we lost our focus to restore what has been lost or broken?  Or in other words do we emphasize "outreach"  in our decisions, vision, or programming within the church body? Has the church lost touch with culture so much that we have no idea how to "make disciples" anymore?  Or is it the fact that for too long we have been trying to reach others with only part of God's great story and plan.

Let me explain the philosophy of outreach or evangelism has solely revolved around the concepts of salvation and resurrection of Christ.  So we tell those who are "lost" that because everyone is a sinner we need to be saved, because sin separates us from God.  They only way that one can be saved is if they believe God sent his son as a sacrifice, taking our place of punishment and death.  So because Christ died for us and then rose from the dead he conquered death, thus giving us eternal life.

This is a very compelling argument and is great news even wonderful for humanity, but we are only sharing the pinnacle part of the story.  We tend leave out the beginning (creation) and the end (restoration) of God's narrative.  It is frustrating or confusing to say the least when you only know or hear part of a story.  Or  say the climax of any movie would not be that exciting if you did not watch it completely from beginning to end. 

Hearing or watching a completed story allows you to be more involved emotionally, gives you a better understanding of why, and therefore you gain a better sense of what that story could mean or how it applies to your life.  If the church changed its approach to making disciples of all nations by sharing the whole story of God, would we be more effective? Have more of an impact on culture? Would new and old Christians have a better sense of mission and purpose with a "whole/complete story" mind-set?