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Halo: Combat Evolved
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Halo: Combat Evolved

Halo: Combat Evolved

Bungie
2001

The legendary first-person shooter that launched the Xbox franchise, featuring numerous physics exploits, grenade jumps, and sequence breaks that have been refined by speedrunners for over two decades.

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The Library

The Library is the seventh campaign level in Halo: Combat Evolved. This notoriously difficult Flood-filled level has several important skips that make it much more manageable.

1st Door Skip

Skip the first major door section, bypassing a significant Flood encounter.

How to Perform

  1. At the first locked door where you must wait for 343 Guilty Spark
  2. Position yourself at the correct spot near the door
  3. Use a grenade jump or Flood Bump to clip through
  4. Skip the waiting period and Flood waves

No Flood Variant

An advanced version that also avoids triggering the Flood spawns entirely.

Flood Bump Door Skips

The Flood Bump technique is extremely valuable on this level for skipping locked doors.

How Flood Bump Works

  1. Locate a Flood Combat Form corpse (only ~40% are "Revivers")
  2. Stand directly on top of the corpse
  3. Wait for it to reanimate
  4. When the Flood form regains collision, you'll be pushed through nearby geometry
  5. This can teleport you through locked doors

Identifying Revivers

  • Not all Flood corpses will reanimate
  • Revivers are specific Combat Forms
  • Watch corpses for subtle movement indicating they'll revive
  • Practice identifying them for consistent results

Door Skip Locations

Multiple doors throughout the level can be bypassed:

  • First floor doors
  • Second floor progression
  • Third floor shortcuts

Enemy Skips

Various techniques to skip or minimize Flood encounters.

Third Floor Enemy Skip

  • Specific routing can skip enemy spawns on the third floor
  • Requires knowledge of spawn triggers
  • Combined with door skips, makes the level much faster

General Tips

  • Keep moving—the Flood infinitely respawn in many areas
  • Don't fight what you don't have to
  • Shotgun is your friend for what you can't skip

Navigation Optimization

The Library has a confusing, repetitive layout. Optimal navigation helps.

Floor Progression

  • Each floor has similar geometry but different routes
  • Learn the fastest path through each section
  • Don't backtrack—always push forward

343 Guilty Spark

  • You must follow 343 Guilty Spark through certain doors
  • Some doors can be skipped, others cannot
  • Know which triggers are required

Tips

  • This is one of the hardest levels on Legendary
  • Door skips make it much more manageable
  • Practice Flood Bump on easier difficulties first
  • The Shotgun is essential for Combat Forms
  • Rockets are valuable but ammo is limited

See Also