From Halopedia, the Halo wiki
The Linebreaker helmet uses a mix of commercial off-the-shelf technology and components adapted from Mjolnir baseline references.
|RKD Group||LINEBREAKER uses a mix of commercial off-the-shelf technology and components adapted from Mjolnir baseline references.||Rare||Season 02: Lone Wolves Battle Pass level 71 (Free)|
|Lethbridge Industrial||High-power battlenet relay with the latest in electronic counter-countermeasures (ECCM) to"burn" through active jamming and signal flooding techniques employed by Insurrection and Covenant remnant forces.||Epic||Season 02: Lone Wolves Battle Pass level 81 (Free)|
The following attachments are not exclusive to Linebreaker, and are compatible with other helmets on the Mark VII core.
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A Spartan-IV wearing a default Linebreaker helmet on Aquarius.
A Spartan-IV wearing a Linebreaker helmet with the HUL[5X]/BNR/ECHELON attachment on Catalyst.
List of appearances