Secret Mission Sennyuu Sousakan Wa Zettai Ni New -

"Secret Mission: Infiltration Operation is Absolutely New."

Or considering standard usage:

The translation heavily depends on the intended context and fixing typos or supposed errors based on that context. secret mission sennyuu sousakan wa zettai ni new

"The secret mission of infiltration is absolutely new." "Secret Mission: Infiltration Operation is Absolutely New