http://en.wikipedia.org/wiki/Missionary_Church
The Missionary Church is a Trinitarian body that believes the Bible is the inspired Word of God and authoritative in all matters of faith; that "salvation is the result of genuine repentance of sin and faith in the atoning work of Christ"; and that the "church is composed of all believers in the Lord Jesus who have been vitally united by faith to Christ". They hold two Christian ordinances: baptism (by immersion) and the Lord's Supper, which are outward signs, not a means of salvation.
They hold to the essentials of the faith so I don't know what the big deal is of this church.
If that is what your old church where you were baptized taught, and you were truly born again before that baptism, then I'd be concerned that the current church follows some form of "baptist bride" belief. Be careful and if this is true seriously consider changing churches.