- Unseen Blade
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- Intrepid Heroic Member
Every wave is of random enemies. 5 waves in each round. 3 rounds in each set. Wave 5 of each round always has a few Brute Chieftans. There is no set limit, Firefight is infinite. Gold skulls will randomly activate from wave-to-wave, the game does get progressively harder because each round, there may be 2 random Gold skulls selected as you get further.