- bat out of h3ll
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- Noble Heroic Member
Master Chief crashes on mysterious planet. Has to fight evil Forerunners, Precursors, more Flood, the creators of the Flood, or some other entirely new threat.
Meanwhile, mankind is trying recover. They create the fourth generation of Spartans which are superior to Spartan IIs to combat the remnants of Covenant.
Eventually, the Spartan IVs meet up with Master Chief to take on the new threat.
As for the Sangheli, they might alliance with the humans. It might be interesting to have three sub campaigns where you play as Master Chief, an Elite, and as a Spartan IV.