Doom Eternal: How to Get and Use the BFG 9000

Doom Eternal: How to Get and Use the BFG 9000

It's a Big Flippin' Gun. Here's where you can find it.

There's probably no weapon more iconic to the Doom franchise than the BFG 9000, and Doom Eternal is no exception. In this guide we'll show you where to get the BFG 9000 and how to use it.

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Where and When Can You Get the BFG 9000 in Doom Eternal?

The BFG appears in the game's seventh level, Mars Core, in which the Doom Slayer is attempting to get to the center of Mars in order to access the city of Hebeth. The BFG 9000 is found along the critical path, stuck into a larger device which you'll use to open the planet's surface: the BFG 10,000, a huge artillery turret that's been instrumental in holding back the demon invasion.

... How come theirs is bigger? | Joel Franey/USgamer, id Software/Bethesda Softworks

How to Get the BFG 9000

The BFG 9000 is found by following your objective markers during the Mars Core level. Shortly after the level begins, you'll fight a Doom Hunter and, after killing it, discover that the demons have obstructed the path to the 10,000. The game will direct you to drop through a hatch and take a new route through the 10,000's inner workings, before eventually you'll come up through a ladder to the operating room. There'll be a brief cinematic in which the Slayer effortlessly intimidates some ARC grunts, then takes control of the BFG 10,000 to shoot the surface of Mars and blow a hole in it thousands of miles across. I guess he's lost a lot of affection for that planet over the years.

This'll be followed by the Marine ripping something out of the 10,000's control panel: the BFG 9000, the power source for the larger gun and now back in its rightful owner's hands. At this point, you'll have the BFG 9000 for the rest of the game.

How to Use the BFG 9000

Unlike Doom 2016, in which the BFG was tied to the Y button, here it's a weapon on your weapon wheel like any other. Well, not quite like any other. The BFG is the most powerful gun in the game, firing orbs of green energy that fly across the battlefield, themselves sending out tendrils of electricity that kill all but the most powerful demons on contact. When the orb hits something, it finally detonates in a vast explosion that few enemies can survive.

Boom Slayer. | Joel Franey/USgamer, id Software/Bethesda Softworks

However, ammo for the BFG 9000 is very rare, to the extent that it's actually marked on your map, and use of this weapon should be sparing - only do it when it's very necessary, or very funny. Also remember to use it in larger battlefields, letting it soar across the air and zap as many enemies as possible before it finally hits something.

Also, be careful not to fire it by accident! When you run out of ammo, Doom Eternal automatically switches to the previous gun for you, and we've fired BFG shots once or twice when our shotgun ran out of ammo. Oops.

We're overrun by Doom content here at USG. Check out Mat's exclusive interview with the developers of Doom 64 here, or check out Hirun's update on when Switch owners can expect their own port of Doom Eternal.

Joel Franey

Guides Writer

Joel loves books, games, comics and drinks that make a person feel like they just got kicked in the head by a mule. He has a Masters in writing from Sussex, which he somehow got by writing about Superman. He is absolutely NOT three children in a long coat, so please stop asking.

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