Slime is correct. It's very rare for a Christian to squabble with another denomination to the point of considering them heretical.
I've grown up in Lutheran, Baptist, Methodist, Non-Denom, and Pentecostal churches. 0 of them ever identified others as not being Christians. Heck, I'm a credentialed Pentecostal minister (Ordained Minister in the Church of God) working at a United Methodist Church as a youth pastor.
Back from the dead, I'm afraid.