The Battle of Old Ephyra was a major confrontation between the Coalition of Ordered Governments and the Swarm during the Swarm War. Four months and four weeks after the evacuation of Settlement 2, a Swarm victory and not long after the COG launched the UIR's Hammer of Dawn satellites into orbit with the help of the Nomads in the mission to OZP-11, Delta-One returned to New Ephyra. They are followed from Vasgar by the Kraken which was a legendary mega-creature that was harnessed by the Swarm as one of it's most powerful weapons. The Swarm creatures began emerging in large numbers across the Old Ephyra ruins under the command of Queen Reyna by catching the COG by surprise on it's home turf. Delta-One and the other Gear squads are immediately deployed to the ruins to plant the Hammer of Dawn targeting beacons in order to be able to use the Hammer of Dawn at the key strategic locations while New Ephyra which was the last bastion of humanity readied it's defenses.
Order of Battle
|Battles of the Swarm Invasion|
|42 A.E.||Rescue of Fort Umson (Ambush of Fort Umson · Assault on the Stroud Estate · Mission to Fort Reval · Battle of Osmium Mine Bravo · Mission to the Tollen Dam · Skirmish in Speyer · Assault on the Tollen Dam) · Skirmish in the Wilds · Ambush on South Village · Mission to Fort Umson · Mission to Orzabal Crater · Mission to South Village · Mission to Azura Research Facility · Evacuation of Settlement 2 · Ambush of Bravelle · Ambush of Croya · Ambush of Holdstead Croft · Ambush of Five Pines · Ambush of Pasco's Village · Mission to Great Seran Rend · Skirmish on the Jacinto Plateau · Ambush of Riftworm Village · Second Mission to New Hope · Incursions in Kadar Valley · Mission to Mount Kadar Laboratory · Mission to OZP-11 · Battle of Old Ephyra · Skirmish in Pahanu · Hivebuster Offensive (Hivebust of Sanctum · Mission to Weilehi · Mission to the Wakaatu Nest · Hivebust of Pahanu · Mission to Croya · Hivebust of Bravelle)|