- "Woah! Better stay clear of those guys!"
- — Clayton Carmine after a Gunker exploded
Lambent Gunkers, or just Gunkers, were especially-deadly Lambent lifeforms that were discovered 18 months after the Sinking of Jacinto. Both large and powerful, Gunkers were the disgusting result of Butcher Boomers being turned Lambent.
Like Lambent Drudges, Gunkers were not observed by COG forces until the Mission to Hanover. Led by Augustus Cole, a team made of Clayton Carmine, Samantha Byrne, and Damon Baird made contact with multiple Gunkers on their way through Stranded settlements at the Hanover dock warehouse and the Hanover Thrashball Stadium.
Two Gunkers were part of a Lambent squad attacking the Warehouse Stranded, shelling the Stranded barricade from afar. Short time after, Delta was attacked by another Gunker at the docks. Finally, Delta was ambushed and cut off by Lambent at the entrance to Cougars Stadium; two Gunkers were among them. Inside the stadium, another Gunker attacked Delta. Then, when the Lambent began overrunning the stadium, a second Gunker attempted to destroy the elevators Delta were in on their way up to the stadium's cable car room. But when Delta reached their destination, the cable cars were gone, so they had to ziple down the car cables. On the way down, one more Gunker tried to eliminate the team only for the bridge it was standing on exploded via shot fuel canister. A final Gunker on Centennial Bridge engaged Delta when the group landed.
A day later, Delta Squad (now composed of Marcus Fenix, Anya Stroud, Jace Stratton, and Samantha Byrne) investigates the destroyed city of Char in search of gas to reach the Endeavor Naval Shipyard. They find the local Stranded and their leader, former Griffin Imulsion Corporation CEO Aaron Griffin. Griffin, despite his hate for the COG, explains that he needs his fuel as well, sending Delta to recover it. On the way up the fuel-tower, a Gunker slams through the wooden roof of the makeshift elevator Delta were on.
|Locust Horde (Queen's Guard, Savage Locust)|
|Berserker · Boomer (Butcher, Flame Boomer, Grinder, Mauler, Mauler Elite, Savage Boomer, Tremor) · Drone (Beast Rider, Bolter, Cyclops, Flame Grenadier, Grappler, Grenadier, Grenadier Elite, Gunner, Hunter, Hunter Elite, Miner, Palace Guard, Sniper, Spotter, Theron Elite, Theron Guard , Theron Sentinel, Savage Drone, Savage Grenadier, Savage Grenadier Elite, Savage Hunter, Savage Marauder, Savage Theron) · Kantus (Armored Kantus, Savage Kantus) · Rager|
|Bloodmount · Brumak · Corpser · Digger · Gas Barge · Heart Leech · Hydra · Kryll · Leviathan · Mangler · Nemacyst · Reaver · Riftworm · Rock Worm · Seeder · Serapede · Shibboleth · Shrieker · Siegebeast · Tempest · Ticker · Torture Barge · Wretch|
|Imulsion · Lambent Berserker · Lambent Brumak · Lambent Drone · Lambent Drudge · Lambent Gunker · Lambent Leviathan · Lambent Polyp · Lambent Stalk · Lambent Wretch|