Halo 3 Is Revived Inside Counter-Strike 2 Through Project Misriah Mod

Halo fans are flocking to Counter-Strike 2 thanks to Project Misriah, a rapidly growing fan-made mod that recreates Halo 3–style multiplayer inside Valve’s Source 2 engine.

The mod uses CS2’s expanded scripting tools and Steam Workshop support to deliver authentic Halo maps, weapons, movement, and announcer audio, giving players a modern way to relive classic Bungie-era gameplay. Early previews from PC Gamer call the project “delightful, evocative of the source material, and legitimately fun.”

What Project Misriah Adds

Led by modder Froddoyo with a small community team, Project Misriah introduces two gameplay variants:

Spartans mode — Halo 3–inspired arenas, Spartan armor models, regenerating health, slower TTK, and Halo weapon behaviors.

ODST mode — A CS-style 5v5 setup using Halo weapons and UNSC/Insurrectionist factions.

Available maps include Ghost Town, High Ground, Blackout, The Pit, and Homefront, with more in development. Weapon replacements cover Halo sidearms, BRs, DMRs, shotguns, and snipers, all tuned to resemble Halo sandbox values.

A dedicated server is already live at 135.148.136.190:27015, and the full collection is free via the Steam Workshop.

Community Response

The project has gone viral on social media, generating thousands of likes on announcement posts and earning a five-star Steam Workshop rating. Many players praise it as “the closest Halo has felt to the Bungie era in years.”

Others argue the mod is largely “Halo-themed CS2,” but even critics acknowledge it as a technically impressive showcase of what Source 2 modding can achieve.

Why This Mod Matters

The revival comes at a pivotal moment for Halo:

Halo Infinite is approaching its final major update, marking the end of its biggest content era.

Microsoft recently teased a Halo: CE remake, drawing mixed fan reactions.

The series is leaning heavily into nostalgia with updates like Reach’s Invasion returning after 15 years.

Against this backdrop, Project Misriah offers Halo veterans a fresh but faithful way to experience classic Halo multiplayer in a modern engine, entirely powered by fans.