Answer: Alright, so I was kinda confused with this specific question, but I'm gonna give it a try.
The Church is the Sacrament of Salvation because She is both a Sign and Instrument of God's Salvation for Humanity. The Church is the Sacrament of Communion because She is God's Instrument to bring Human Beings into Communion with God and with each other through the Grace of the Sacraments. ( What Catholics strongly believe in) ( The pronoun " She" means Mary in this text).
In the Christian church the tradition is joined not only to the teachings of Jesus and the story of his life as prophet and teacher but also to the central event of the history of salvation, which his life, Passion, death, and Resurrection. ( What Protestants strongly believes in)
Anyone can receive salvation in Christ through repentance and faith. This means turning away from sinful ways (repentance) and turning to God (faith), trusting in Christ. Jesus will forgive your sins and set you on a path to life with Him. ( What both Protestants and Catholics strongly believe)
Salavation can only be done through Jesus Christ. Read in the Bible, Romans 10:9, and it clearly states how to get saved/ recieve salvation. That is if you don't believe anything that I'm writting down. Take it from the Bible please do, don't take it from me.
Explanation: I'm not sure if that's the answer to the question that you were looking for, but I did my best.