Spartans (300) vs Orcs (Warcraft)
Leonidas and his warriors head off to the Hot Gates to face a new invading force. But, instead of Persians, the Orcs from Warcraft invade.
The 300 Spartans have their position in the Hot Gates, as they had in the film. The Orcs start where the Persians did, but they are free to approach the attack however they want. As we see in Warcraft, Orcs aren't just brutes. They are capable of planning/tactics. The Orcs are being led by Durotan and Blackhand.
Round 1: The Spartans face 100 Orcs.
Round 2: The Spartans face 300 Orcs.
Round 3: The Spartans face 500 Orcs, but they have the Greek support units they had in the film.