Rainbow Six Siege Deluxe Edition includes the full base game plus 16 operators from Years 1 and 2. Those operators are Frost, Buck, Valkyrie, Blackbeard, Caveira, Capitão, Hibana, Echo, Jackal, Mira, Lesion, Ying, Ela, Zofia, Dokkaebi, and Vigil.

What you get

  • Full game, including all maps and modes.
  • 16 operators from Year 1 and Year 2.

Quick note

If you only want the base game, the Standard Edition is enough; the Deluxe Edition is mainly for starting with more operators unlocked.

If you want, I can also compare the Deluxe, Operator, and Ultimate editions side by side.