Halo Reboot Wiki: Campaign Walkthrough, Weapons & Achievements

Complete Halo Reboot guide covering campaign missions, multiplayer weapons, maps, and achievements. Written by a wiki editor with concrete tips and data.

**Key Takeaways**
  • The Halo Reboot campaign has 12 missions, with a total playtime of 10-15 hours on Heroic difficulty.
  • Multiplayer introduces 8 new maps and 3 weapon variants, including the MA5K Carbine with a 2.5x headshot multiplier.
  • There are 45 achievements (1000 Gamerscore) with 5 missable ones tied to specific campaign actions.
  • The new "Flood Horde" mode requires coordinated team play to survive 30 waves. ---

    Campaign Walkthrough: Key Missions and Tips The Halo Reboot campaign splits into three acts. Act 1 focuses on the initial UNSC retreat from Reach, Act 2 on the discovery of the Halo ring, and Act 3 on the Flood outbreak. Here's what you need to know for the trickiest parts. ### Mission 3: The Glassing (Act 1) This is the first real difficulty spike. You protect a civilian evacuation convoy near New Alexandria. The key is to use the new **M79 Grenade Launcher** (found near the second checkpoint) to destroy the Covenant Wraith tanks from range. There are 3 Wraiths total—each requires 4 direct grenades. On Legendary, they spawn additional Grunt support squads every 90 seconds, so prioritize the tanks first. ### Mission 7: The Cartographer (Act 2) You navigate the Halo ring's underground map room. The puzzle involves activating three energy conduits in a specific order. If you activate them out of sequence, the room spawns Hunters. The correct order is: Blue (west), Red (north), Green (east). This triggers a 2-minute timer—clear the area before the door seals permanently, forcing a checkpoint reload. ### Mission 11: The Flood (Act 3) The Flood combat forms are faster than in previous Halo games. Use the **Shotgun** (found in the armory before the hangar) for close encounters. The new Flood Carrier Forms explode into 6 infection forms each, so keep your distance. The final boss, a Proto-Gravemind, has 12 health bars and is weak to plasma weapons—the **Plasma Pistol** overcharge drains 1.5 bars per hit. ---

    Multiplayer Weapons: What's New and What Works The Halo Reboot adds 3 new weapons and tweaks 4 classics. Here's the breakdown: | Weapon | Damage (per shot) | Fire Rate | Best Use Case | |--------|-------------------|-----------|----------------| | MA5K Carbine | 25 (headshot 62) | 650 RPM | Mid-range, 2-shot headshot kill | | M79 Grenade Launcher | 150 (direct) | 45 RPM | Vehicle/group clearing | | Sentinel Beam (Reboot) | 10 (sustained) | 1000 RPM | Close-range, shield drain | | BR85 Battle Rifle | 30 (burst of 3) | 400 RPM | Long-range precision | **Personal tip:** The MA5K Carbine is overtuned in the current patch. It kills in 2 headshots at any range, making it the go-to for competitive play. The M79 is great for objective modes like Strongholds—one grenade clears a capture point. ### Multiplayer Maps: 8 New Arenas
  • **Haven 2.0** (4v4): A symmetrical map with a central lift. Good for BR duels.
  • **The Pit 2** (4v4): Remake of the classic, but with added ramps. Expect CQC fights in the center.
  • **Forge World: Remnant** (8v8): Large map with vehicles. The new **Warthog** has a weaker turret but faster speed.
  • **Flood Containment** (4v4): Indoor map with tight corridors. Shotguns dominate.
  • **Outpost** (4v4): Asymmetric with a sniper tower. Control the tower to win.
  • **Covenant Station** (8v8): Vehicles and long sightlines. Use the **Rocket Launcher** for the central bridge.
  • **Reach City** (8v8): Urban combat with destructible cover. The **M79** shines here.
  • **The Ark** (4v4): Open layout with a central power weapon spawn (the **Spartan Laser** at 3:00). ---

    Achievement Guide: 45 Achievements (1000 Gamerscore) Half the achievements are straightforward campaign completions. The tricky ones are:
  • **"Speed Demon"** (25G): Complete Act 1 in under 45 minutes. Skip cutscenes, use the shortcut in Mission 3 (jump over the collapsed bridge near the second checkpoint).
  • **"Unbreakable"** (50G): Complete Mission 7 without dying. Use the **Energy Sword** (found in the armory) to one-hit Hunters.
  • **"Flood Fighter"** (30G): Kill 500 Flood forms in a single playthrough. Focus on Mission 11—there are 200 Flood there alone. Use the **Shotgun** for efficiency.
  • **"Master of Arms"** (75G): Get a kill with every weapon in multiplayer. The **Sentinel Beam** is the hardest—camp near the weapon spawn on Haven 2.0.
  • **"Team Player"** (20G): Win a Flood Horde match on Legendary. Requires 4 players, good communication, and a loadout with **Plasma Pistol** and **Shotgun**. **Missable achievements:** "Data Miner" (15G) requires scanning all 12 terminals in the campaign—miss one and you have to replay the mission. "Pacifist" (10G) is earned by completing Mission 2 without killing any enemies (just run past them). ---

    FAQ **Q: How do I unlock the new MA5K Carbine in multiplayer?** A: It's a spawn weapon for all loadouts by default. No unlock required. It replaced the DMR in the loadout menu. **Q: Are there any hidden easter eggs in the campaign?** A: Yes—in Mission 5, look for a cracked wall near the third checkpoint. Shoot it with the **Plasma Pistol** overcharge to reveal a hidden room with a **Spartan IV armor** skin (unlocks in multiplayer). **Q: What's the best strategy for Flood Horde on Legendary?** A: Stick together, use the **Plasma Pistol** to drain shields, then **Shotgun** for kills. Save the **Rocket Launcher** for wave 25+ when the Flood Juggernauts appear. Each Juggernaut takes 4 rockets.