Halo Infinite

Halo Infinite

144 Achievements

2,020

111-138h

PC
Xbox One
Xbox Series
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Big Brother

Big Brother

Fully upgraded the Threat Sensor ability.

10

4.66%

How to unlock the Big Brother achievement in Halo Infinite - Definitive Guide

Pretty simple and basically the same as all the others. Step one: obtain the sensor. You cannot miss the sequence. Once you have it, you’ll have to find 9 Spartan cores scattered about on your tac map represented by a small triangle icon.

To help find Spartan cores, activate nearby FOBs. This will show nearby points of interest. Also listen for the beeping noise they make toast
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10 Dec 2021 03:58

8 Comments
All of the other ability achievements unlocked for me, but this one just does not unlock. So weird….
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By KillerZ x Ace on 11 Dec 2021 17:23
This one is bugged for me. I have done all the upgrades and no achievement also the achievement impervious has the same problem and somehow i have 1 spartan core left.
Originally for my first playthrough it was bugged. My 2nd easy run through of the game to gather the remaining collectibles it finally popped. Hopefully their latest patch corrects this issue.
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By McFuzzyBoots on 16 Dec 2021 16:49
So I can't even select the threat sensor from the upgrades yet I have it unlocked and have used it before. All that I can highlight and upgrade is the Graplleshot.
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By T0NY HAYABUSA on 19 Dec 2021 13:35
Bugged for me
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By Mahlergic on 19 Dec 2021 17:18
Now I have all five attachments and can't select any of them to upgrade
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By T0NY HAYABUSA on 20 Dec 2021 01:14
@T0NY HAYABUSA: Try deselecting Settings > Accessibility > Linear navigation mode. That solved the problem for me.
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By ReimKamm071481 on 23 Dec 2021 23:24
@ReimKamm071481 that worked! Thanks for the tip.
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By T0NY HAYABUSA on 24 Dec 2021 01:01
This one is bugged for me. I have done all the upgrades and no achievement also the achievement impervious has the same problem and somehow i have 1 spartan core left.
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By TheSh4d0wReaper on 16 Dec 2021 12:49
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