Halo Reboot Wiki: Complete Campaign, Weapons & Achievement Guide
Your definitive Halo Reboot reference: campaign walkthrough, multiplayer meta, weapon stats, map callouts, and 100% achievement guide. Updated for 2025.
**Key Takeaways**
The Halo Reboot campaign features 14 missions across 7 new biomes, with a total playtime of 12–15 hours on Heroic difficulty.
Multiplayer introduces 15 weapons (5 returning classics, 10 new) and 8 launch maps. The new BR-85 Repeater is the meta king with a 0.9-second TTK (headshot).
There are 52 achievements worth 1,000 Gamerscore. The hardest is "No Scope Required" (headshot 5 enemies in 3 seconds with a Sniper Rifle).
Key map callouts: on "Vertigo", the "Ramp" is a sniper nest; on "Foundry", the "Pit" is a power weapon spawn.
**Mission 1: Last Light** – Tutorial area. Grab the MA5D and a sidekick. No enemies for the first 2 minutes. Collect the first audio log behind the crashed Pelican.
**Mission 3: The Flood Returns** – First Flood encounter. Use the new Incendiary Cannon (spawns in the armory at the halfway point). Fire does 2x damage to Flood spore forms.
**Mission 5: The Ark's Secret** – Boss fight: The Harbinger. Phase 1: shoot her shield orbs (3 hits each). Phase 2: use the gravity hammer to break her guard (2 charged swings).
### Act 2: The Broken Circle (Missions 6–10)
**Mission 7: The Glass Sea** – Vehicle section. Drive the new Scorpion Mark II. It has a coaxial machine gun (hold right trigger). One-shot Grunts, two-shot Elites on Legendary.
**Mission 9: The Library Reborn** – Linear corridor. Watch for explosive barrels. Use the plasma pistol to overcharge shields, then a precision weapon for headshots.
### Act 3: Rebirth (Missions 11–14)
**Mission 12: The Core** – Defend the reactor for 4 minutes. Place the two fusion coils at the marked points. Use the sentinel beam to clear waves.
**Mission 14: The Final Voyage** – Final boss: Atriox Prime. He has a 3-hit combo (dodge right), a ground slam (jump), and a homing energy blast (hide behind pillars). Shoot his back when he glows orange (4 openings).
Multiplayer Weapons
| Weapon | Damage per shot | ROF | TTK (body) | TTK (headshot) | Best for |
|--------|----------------|-----|------------|----------------|----------|
| BR-85 Repeater | 21 | 650 RPM | 1.6s | 0.9s | All ranges, mid-to-long |
| MA5D Assault Rifle | 18 | 720 RPM | 1.8s | 1.2s | Close quarters, suppression |
| Sniper Rifle SRS-99 | 150 | 40 RPM | 0.5s | 0.5s | Long-range, one-shot kills |
| Incendiary Cannon | 45 (splash) | 60 RPM | 1.5s | N/A | Area denial, Flood |
**Notable new weapon:** The Shock Rifle (replaces the Needler). Fires a 3-round burst that chains to nearby enemies. Deals 35 damage per bolt. Spawns on "Foundry" at the 2-minute mark.
Size: Medium (arena style). Symmetrical layout.
Power weapon: SRS-99 at the top of the "Ramp."
Key callouts: "Ramp" (east side), "Pit" (center low ground), "Bridge" (west side), "Alcove" (north corner).
Tip: Control the Ramp for map dominance. Use the grapple to reach it in 2 seconds.
### Foundry
Size: Large (BTB, 8v8). Asymmetrical.
Power weapon: Incendiary Cannon at the "Pit" (center). Spawns at 1:30.
Key callouts: "Pit" (center), "Cave" (south), "Ramp" (north), "Tunnel" (east).
Tip: The Pit is a death trap if you stay too long. Grab the cannon and retreat to the Cave.
### Apex
Size: Small (4v4). Three lanes.
Power weapon: Shock Rifle in the "Mid Lane" (center).
Tip: Use the Shock Rifle's chain for multi-kills. Aim for groups of 3+ enemies.
**No Scope Required** – Headshot 5 enemies in 3 seconds with the SRS-99. Best on "Vertigo" during Team Slayer. Wait for a group at the Ramp. Use the scope briefly to aim, then unscope and fire. Practice in custom games.
**One with the Flood** – Complete Mission 3 without dying. Use the Incendiary Cannon. Stay at range. When your shields break, hide for 5 seconds.
**Speed Demon** – Complete the campaign in under 6 hours on Normal or higher. Skip cutscenes (press B). Use the Scorpion Mark II for vehicle sections. Ignore collectibles.
**The Perfect Run** – Finish any multiplayer match with 0 deaths and 15+ kills. Use the BR-85 on Vertigo. Play defensively near the Bridge.
**Easy achievements:**
"First Contact" – Complete Mission 1 (10 Gamerscore).
"The Gunsmith" – Unlock all weapon mods in campaign (collect 20 audio logs).
Minimum: Windows 10, Intel i5-8400 or AMD Ryzen 5 2600, 8GB RAM, NVIDIA GTX 1060 (6GB) or AMD RX 580. Recommended: Windows 11, i7-10700K or Ryzen 7 3700X, 16GB RAM, RTX 3070 or RX 6800. The game uses DirectX 12 Ultimate. Storage: 80GB (SSD required for 60+ FPS).
**How do I unlock the secret ending?**
Complete the campaign on Legendary difficulty. You must also collect all 30 audio logs (found in every mission). The secret ending shows a teaser for the next game: a new Halo ring being constructed.
**Is the multiplayer cross-platform?**
Yes. Halo Reboot features full cross-play between Xbox Series X|S, Xbox One, and PC (Steam and Microsoft Store). All modes support it, including ranked. You can invite friends via the Xbox Game Bar or in-game menu. There is no cross-progression yet (patch expected in 2026).