Yet another secret Waypoint code for Halo 4! This one nabs you 50,000 free XP, no strings attached, AND it unlocks an extended version of the “Rebirth” video for Greg Bear’s new novel “Silentium,” AND it unlocks a cool new emblem “Overachiever.” Enjoy!
Halo 4 Rebirth Code – 50,000 XP!
The Halo community has done it again! This new Silentium code gives you 20,000 free XP plus a Rebirth video that seems to be glitched on Halo Waypoint.
Halo 4 Silentium Code – 20,000 XP!
The Halo community discovered a new Waypoint code for 25,000 free XP! The “Majestic Code” unlocks Majestic Map Pack DLC concept art too, no strings attached 
Enjoy!
Halo 4 Majestic Code – 25,000 XP!
In Episode 4 of Breaking Halo 4, we explore Specializations in extreme detail. How much XP does each Specialization require? Which emblems, weapon skins, tactical packages, and support upgrades does each class unlock? In what order are armor, visor colors and armor skins unlocked? Which mods from Wetwork, Pioneer, Operator, Pathfinder, Engineer, Tracker, Stalker, and Rogue are useful? When should you use Stealth, Gunner, Stability, Requisition, Wheelmen, Fast Track, Drop Recon and Nemesis?
Halo 4: Specialization Mods + Unlocks
Looks like we’re not done with Halo 4 Codes just yet! The new secret LASO code unlocks 50,000 XP and a sweet LASO emblem that mimics the Legendary Campaign icon. The catch: you must complete the Halo 4 Campaign on LASO difficulty (Legendary All Skulls On) to use the code! I’ll have some speedrun guides up in the coming weeks.
Halo 4 Secret LASO Code – 50,000 XP!
The LK secret Waypoint code in Halo 4 unlocks the Raider DSTT Helmet armor along with a few associated goodies. It requires an astounding 1,000 Matchmaking War Games to activate
Halo 4 Secret LK Code!
By the powers of Spartan Ops matchmaking, Double XP, and Fast Track, you can get over 13,000 XP per game of Halo 4. This is by far the fastest known way to rank up.
Halo 4: Fastest Way to Rank Up – 13,000 XP Per Game
The 2-Dot secret Waypoint code in Halo 4 unlocks 2500 XP, Raider DSTT Right and Left Shoulders, the “On Your Shield” emblem, and gorgeous Spartan Ops Concept Art. It requires completing Spartan Ops Episodes 1-3, or Chapters 1-15, on Legendary (solo or co-op)
Halo 4 Secret 2-Dot Code!
