Mission 9: Battle for Epsilon Expanse

"Nine lofty bridges spanning an enormous gorge called the Epsilon Expanse allowed for access to the southern plateau where the majority of Covenant landing zones were located. The Covenant quickly secured these bridges and held UNSC forces at bay with heavy artillery. Spartan Palmer escorted the 23rd Armored Cavalry to the Epsilon Expanse but the Scorpion tanks would not survive the guaranteed heavy artillery fire. Taking a small team of marines across one of the bridges, Palmer managed to infiltrate the Covenant camps and destroy seveal artillery turrets, giving the Scorpions the chance to advance and launch a counter-offensive."

- Mission summary