Last updated: 19 August 2026
ARC Raiders How to Kill a Bastion Weak Points & Strategy
A Bastion is one of the most dangerous heavy ARC machines you'll run into mid-raid — a slow-moving walker with a main gun that can strip a light shield and most of your health in seconds if it gets a clean burst on you. It's also, once you know its pattern, one of the more consistently beatable heavy ARCs, because its weak points and attack tells are predictable. This guide covers where to shoot it, when to peek, and what to bring.
01Why Bastions Are Dangerous
A Bastion's main gun is its entire threat. At medium range and closer, an unbroken burst can shred a light shield and a big chunk of your health bar in under two seconds — this is not an enemy you want to trade shots with in the open. Its size and slow movement speed make it easy to keep at a distance, which is exactly how you want to fight it.
The good news: Bastions telegraph their firing sequence with an audible warning, and they have exploitable weak points that stagger them for an extended window. Fighting one correctly is less about raw damage output and more about using cover and punishing the stagger.
02Weak Points
The leg joints are the Bastion's primary and easiest-to-hit weak point — they're visually marked and take priority damage when you land shots on them. Do enough damage to a leg joint and the Bastion buckles, staggering for a significant window (around 15 seconds) during which its rate of fire and ability to track you drop off.
A second weak point opens up on its rear once you've put enough damage into it — an exposed panel that takes bonus damage compared to hitting its armored front or sides. Circling to its back after the opening exchange, rather than always approaching head-on, meaningfully speeds up the fight.
03Attack Pattern and the Warning Cue
Before it opens fire, a Bastion emits a distinct, loud sound cue — this is your signal to break line of sight immediately, not to keep pushing for one more shot. Learning to react to that sound rather than to the first bullet is the single biggest survivability upgrade you can make in this fight.
Its firing pattern comes in bursts with gaps between them rather than one continuous stream. Those gaps — and the longer stagger window after a leg-joint hit — are your windows to peek out, land damage, and get back behind cover before the next burst starts.
04Best Loadout
Bring a heavy-ammo weapon — the Anvil is a reliable, widely-recommended pick against Bastions specifically because heavy ammo carries better damage per hit than light or medium options, which matters when you're working through armor to reach the leg joints and rear panel.
Grenades are worth carrying into this fight; a well-placed throw during the stagger window adds meaningful burst damage without exposing you to return fire. Equip the highest shield tier your current Augment allows — Bastions are exactly the kind of sustained-damage fight where a Medium or Heavy shield earns its weight.
05Step-by-Step Strategy
- Approach behind hard cover with enough room to fall back further — don't commit to a position you can't retreat from.
- Peek and fire at a leg joint when the Bastion isn't mid-burst; retreat to cover the moment you hear the warning cue or see it winding up.
- When a leg buckles and it staggers, use the full window to unload — this is when you do the most damage per second of exposure.
- After the stagger, reposition toward its rear if you can do so safely, to start working the exposed rear panel instead of its front armor.
- Repeat: peek during gaps and stagger windows, retreat on the warning cue, and avoid ever standing in the open at close range.
06Solo vs. Squad
A Bastion is very doable solo if you respect its damage output and never lose track of your escape route — the main risk solo is getting caught mid-reload during a burst. In a squad, split up so the Bastion can't focus one target for long, and call out the stagger window so everyone pushes damage at the same time rather than trading turns.
FAQ
Where do you shoot a Bastion in ARC Raiders?
Target the leg joints first — they're the Bastion's primary weak point and enough damage there staggers it for around 15 seconds. Once you've dealt damage, a second weak point opens on its rear panel, which takes bonus damage compared to its armored front and sides.
What's the best weapon against a Bastion?
A heavy-ammo weapon like the Anvil is a solid, widely-recommended choice — heavy ammo hits harder per shot, which helps get through its armor to the leg joints and rear panel faster. Grenades thrown during its stagger window add useful extra damage without exposing you to return fire.
How do you avoid dying to a Bastion?
Listen for its loud warning cue before it opens fire and break line of sight the instant you hear it — its main gun can strip a light shield and most of your health in under two seconds at medium range or closer. Fight from hard cover with a clear retreat route, and never stand in the open trading shots with it.
How long does a Bastion stagger last?
Roughly 15 seconds after a leg joint buckles from enough damage. Its rate of fire and tracking drop off significantly during that window, making it the best time to push maximum damage before retreating back to cover.
Can you kill a Bastion solo in ARC Raiders?
Yes — a Bastion is beatable solo as long as you respect hard cover, react to its warning cue instead of the first shot fired, and use its stagger windows to land damage rather than trying to out-trade its main gun in the open.
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