The Eaca-B is an air-to-ground fighter used by the Rebel Army, making most of their air force along with the Flying Tara. Fast and versatile, they are weak against anti-aerial fire. They carry self-propelled-heat-seeking bombs which serves as their main firepower, but in the last mission of Metal Slug 3, they fires semi-homing missiles to the player, but in Metal Slug 2/X final mission while they battle mini UFOs they are shown using their machine guns.
- They're based on 2 WWII fighters: on the American Grumman TBM Avenger torpedo bomber and the Grumman F6F Hellcat. And has the turrets from a Boeing B-17 bomber.
- In the second mission of Metal Slug 6, if you don't kill the gray Mars People, an Eaca-B will appear.
- They have machine guns on the wings and a turret but never were shown used, except when dogfighting Martians in the background during the Martians' betrayal.
- In Metal Slug Attack appears again in Extra Ops "Crazy Drive"
|Combat||Di-Cokka | Bull Chan | Girida-O | Iron Iso | Melty Honey | MV-280B | Mini-Bata | M-15A Bradley | LV Armor | MV-280C | Japanese Tank Soldier|
|Support||MV-280A | Dararin Dara Dara | 3-ton Utility Truck | Landseek | Nop-03 Sarubia | M-3 Rocket Launch Support Van | Double-Decker Bus | MG-36 | Ferry Boat | Subway | Turrets | Morden Saucer | Walking Locomotive | Garbage Fortress | Mine Carts|
|Aerial||R-Shobu | MH-6J Masknell | Flying Tara | Eaca-B | Null Fighter|
|Marine||Hammer-Yang | Jet Hammer-Yang | U25U | Mini-Sub 88|
|Vigilance||Mosque Artillery | Patrol Robot | Supervisory Camera | Sensor Mine | Morden Robot | Metal Mole | Laser Drone | Pods | Rebel Walker | Balor|
|Ptolemaic||Black Hound | Hover Vehicle | Hover Unit | A.P.C. | Ptolemaic Slug | Wall Drone | Units | Ptolemaic Saucer | Mammoth Tower|