Many Christian groups promote "the word of God" and Mass Crusaders is no different.
We back this up in Christ's own words, "this is my body" ~ Luke 22:19, we cannot deny this - just as God cannot lie.
We do not only celebrate this in remembrance of our Lord, Jesus Christ; but we truly believe in our Lord's words, and wholeheartedly receive Him at the Mass of our Lord.
The words of God, made flesh at the Mass - the Body of Christ. This is what we evangelise.
Through our Holy Communion with Christ, are one with Christ, the one body of Christ. Just as Christ is one with the Father and Holy Spirit.
It is therefore necessary, and evidently only in the Mass of the "One, Holy, Catholic and Apostolic Church."
This is what Christ has founded and what He has said: "That they all may be one, as thou, Father, in me, and I in thee; that they also may be one in us; that the world may believe that thou hast sent me." ~ John 17:21
Indeed we truly evangelise the word of God, by evangelising the Mass of our Lord - the body of Christ.