Rock and Coil Hit Back

Halo: The Master Chief Collection

Rock and Coil Hit Back is an achievement in Halo: The Master Chief Collection. It is unlocked by earning 100 Environmentalist medals in Halo 2: Anniversary multiplayer matchmaking. Environmentalist medals are awarded for kills with fusion coils and the stalactites on Lockdown. The achievement is worth 10 Gamerscore.

v • d • e

Achievements in Halo: The Master Chief Collection (list)

v • d • e Halo 2: Anniversary campaign

Campaign completion	Cairo Station • Outskirts • Metropolis • The Arbiter • Oracle • Delta Halo • Regret • Sacred Icon • Quarantine Zone • Gravemind • Uprising • High Charity • The Great Journey • Big Green Style • Warrior • Hero • Legendary Anniversary

Campaign scoring	Don't Hangar Around • Rooftop Runner • Speeding Ticket • YOLO Strats • Reed the Strategy • So You Don't Want the Tank? • I Regret Nothing • Terminal Velocity • Hot Zone • Force of Will • No Man's Land • Feeling Charitable • Are We There Yet? • Going Nowhere Fast • Bomb Squad • Objective Secured • Ripple Fire • Heresy Will Not Stay My Feet • Leave None Alive • Boundless • Fists of Fury • Guided Tour • The Doctor Is In • Official Business • The Hype Is Real • Scorched Earth • Frequent Flyer Miles • Arcade Owner

Collectibles	Curious • Inquisitive • Examiner • Inspector • Fascinated • Enchanted • Enamored • Determined • Delighted • Knowledgable • Scholar • Reviewer • Obsessed • Walking Encyclopedia • Skulltaker Halo 2: That's Just... Wrong • Skulltaker Halo 2: Thunderstorm • Skulltaker Halo 2: Blind • Skulltaker Halo 2: IWHBYD • Skulltaker Halo 2: Catch • Skulltaker Halo 2: Grunt Birthday Party • Skulltaker Halo 2: Famine • Skulltaker Halo 2: Envy • Skulltaker Halo 2: Assassins • Skulltaker Halo 2: Mythic • Skulltaker Halo 2: Sputnik • Skulltaker Halo 2: Anger • Skulltaker Halo 2: Ghost • Skulltaker Halo 2: Iron • Skulltaker Halo 2: Black Eye • Trophy Collector • And So It Begins... • Regrettable Turn of Events • The Will of the Prophets • Chieftain of the Brutes • Don't Make a Girl a Promise • My Work is Done • I Like Crazy • Pyrrhic Solution • Toybox

Easter eggs	The Return of Megg • Cowardly Grunt • Siege of Ivory Tower • THE Chips Dubbo? • Rex Sword • 10 Minutes Too Early • He's Running a Marathon... • HI BEN • E E E • GOOOAAAAALLLL! • Scarab Lord • Destination vacation • Why So Serious • Why Am I Here? • Animal Habitat • Sid Graffiti

Miscellaneous	Back At It • Six Pedals, Four Directions • Betcha can't stick it... • Needs More Whammy Bar • Like Peanut Butter and Chocolate • Starved For Shields • Tighten Up The Graphics • Commuter • He Never Gets Me Anything • Silent But Deadly • Demon • Go Ape Shiv • Dirty Bird • Back for More • Monopolized • Tourist • Window Shopping • Seconds • Connoisseur

v • d • e Halo 2 Anniversary multiplayer

Invaders Repelled • Triple Threat • Bombing Run • Cold Fusion • Counter-Sniped • Eminent Domain • Stayin' Alive • Top Gungoose • The Goose is Loose • Shook the Hornet's Nest • Skeet Shooter • Red vs. Blue • Cold as Ice • Power Play • Shields Up! • Wetwork • MVP • Grand Theft Halo • Tour of Duty • Double Down • Warden • Blown Out of the Sky • Decorated Warrior • Ninja Redux • Flaming Ninja Anniversary • Legend Slayer • Zealot • Put Up Your Dukes • Roadkill Rampage • Rock and Coil Hit Back

BLAST Soda	Bloody Thirsty! • Thirst Locked Down! • Rule Your Thirst! • High Altitude Thirst! • Worship Your Thirst! • Gate Your Thirst! • BLASTacular! • Monumental Thirst!

For a complete list, check out our Master Chief Collection achievements category.

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