Halo Wars 2 - Operation Spearbreaker Walkthrough

Operation Spearbreaker is a two-mission Halo Wars 2 DLC campaign starring Sergeant Johnson and an ODST fireteam. This walkthrough covers a Heroic co-op run with strategies for Gatecrashers and Not on My Watch — beam dodging, economy on power nodes, and the timed finale push. If you have not cleared the main campaign yet, start with our full campaign walkthrough for shared beam-dodge fundamentals.

General Observations

• Leaders: You play as Johnson with ODST-focused leader powers rather than a standard UNSC hero roster.
• Map familiarity: Mission 1 layout closely resembles the multiplayer map Mirage — useful if you already know lane control there (see our map tier list).
• Beam spam returns: Like the main HW2 campaign, random beams can delete units with little warning. Split groups and do not AFK during cutscenes — the game does not pause.
• Co-op: Leader powers are per-player; population is shared. Coordinate who holds defense while the other expands.
• Difficulty: Heroic is punishing; Legendary adds more beam frequency. Normal is a fair first clear if Heroic becomes frustrating.

Mission 1 — Gatecrashers

Defend UNSC positions while capturing and holding control towers across the map. Banished waves hit from multiple directions while you secure power nodes for sustained income.

Objectives

• Capture and hold control towers to progress the mission.
• Defend your main base and any mini-bases you claim.
• Secure power nodes — they provide continuous power income and are worth fighting for early.

Key Units and Leader Powers

• ODST Squad: Signature Spearbreaker unit with a support drone (laser + EMP-style utility similar to Johnson's kit in multiplayer).
• Hellbringer Squads: Available early — strong vs infantry clusters and Hunters.
• Wolverines: Essential once Banished air appears; keep a mixed group near your base.
• Leader powers: Holographic Decoy, Scatterbomb, and Bunker Drops — each player has their own cooldowns.

Strategy Tips

• Drop bunkers on chokepoints before pushing the next tower — beams will punish exposed armies.
• Upgrade supply pads when power allows; generators on mini-bases are high value if you can hold them.
• Keep Restoration Drones or Nightingale support near your main push — Marines self-heal under drone coverage.
• Mini-bases can be destroyed quickly; do not over-invest in a forward base you cannot defend.
• Split units before crossing open ground — one beam should not wipe your entire army. See advanced movement and splitting for multiplayer-ready micro.

Mission 2 — Not on My Watch

A 15-minute timed finale: a Forerunner ship will launch unless you destroy Banished strongholds and clear the map fast enough. Economy snowballs if you stall early.

Objectives

• Beat the countdown — treat every minute as lost production time.
• Destroy enemy production buildings and clear fortified positions.
• Protect high-value units (especially Grizzlies) from beams and air raids.

Key Units

• Grizzly Tanks: Core damage dealers — never let them wander alone.
• Colossus: Johnson leader drop — treat it like a temporary super-unit and protect the landing zone.
• Nightingale: Rescue and keep mobile; healing under beam pressure is critical.
• Combat Tech Marines + Hornets: Answer Banished air before it deletes your armor ball.

Strategy Tips

• Save Grizzly Battalion for a fortified choke or Retriever encounter — do not drop it into open beams.
• Build redundant bases when possible; losing one production line with 8 minutes left is brutal.
• Prioritize Tech 3 and vehicle depot upgrades — infantry alone will not clock the timer.
• Scatterbombs on clumped Banished units; holograms to draw turret fire while Grizzlies advance.
• Retriever Sentinels are priority targets — focus fire with Wolverines and air before they melt your armor.
• Supply crates scattered on the map are free tempo; path troops near them when rotating objectives.

General Tips

Unit Management

• Units gain veterancy in combat, not while moving — pause pushes briefly to let frontline units rank up when safe.
• Micro beams: pull wounded units back, split squads, and use decoys to absorb random beam RNG.
• Transfer units between co-op partners if one player is defending and the other is attacking.

Compared to Main Campaign

• Only two missions, but density is high — less map variety than the full Ark campaign, more focused on UNSC fireteam fantasy.
• Beam frequency remains the main frustration on Heroic/Legendary; Halo Wars 1 campaign difficulty is generally considered more consistent.
• Worth playing if you enjoy Johnson/ODST flavor or want a shorter co-op challenge before Awakening the Nightmare.