The Episode 36: Metal Part II Add-on for DC Universe Online has 4 achievements.
During the Into the Dark Multiverse (Normal or Elite) Raid, have no one in the group get knocked out during the fight with Forgemaster Hawkman.
Complete the following Metal Pt. II: Batscape Duo feats: Mental Guard Part 1, Mental Guard Part 2, Let Your Guard Down, Dark Knightmares, Inner Demon Slayer, Barbat-Toss, and Apparition Abolition
During the Metal Pt. II: Damage Control (Normal) Alert, in a single run, successfully complete the mirror configuration to blind the Drowned twice.
Defeat Lady Blackhawk in Metal Pt. II: The Phoenix Cannon (Normal or Elite) Raid, without knocking out Lieutenant Thrasher