some Christian groups do not engage in mission in any of the ways
Quakers: believe God speaks directly to the hearts of people so evangelism is wrong as it interferes with God's work in the lives of individuals
some groups put more emphasis on one type of evangelism over the others:
Salvation Army: sees it's own mission as serving the poor + needy, with majority effort in caring for the homeless + vulnerable
some groups see mission as unimportant:
the Exclusive Brethren: believe the world is contaminated by sin + in order to be saved, they must cut themselves off from mainstream society as much as possible - making mission impossible