Halo 3 Lands in Counter-Strike 2: Modders Release Ambitious Project Misriah and Highlight Source 2’s Untapped Potential

Project Misriah, a new Steam Workshop collection for Counter-Strike 2, has delivered a fully playable Halo 3–style multiplayer experience inside Valve’s shooter. Created by mappers Froddoyo, Lydran, and ORB-NRG, the pack was quietly uploaded shortly before its major media coverage—and it has quickly become one of the most talked-about CS2 mods to date.

Halo 3 Inside CS2: What Project Misriah Really Is

According to its official Workshop description, Project Misriah aims to recreate “a Halo 3 multiplayer-like experience” using Source 2’s scripting tools. The project offers two distinct gameplay styles inspired by the Halo universe: Spartans and ODST.

Spartan Mode (Classic Halo 3 Style)

The mod features several fully rebuilt Halo 3 multiplayer maps:

Ghost Town

High Ground

Homefront (originally a Halo 3 Workshop map)

To replicate Halo’s iconic sandbox, CS2 weapons are replaced with Halo counterparts, complete with:

Custom damage tables

No movement accuracy penalties

No aimpunch

Regenerating health

Slower time-to-kill

Authentic Halo 3 character models and armor variants

Classic announcer callouts for medals, multikills, and objectives

ODST Mode (Halo-Flavored CS2)

ODST-style gameplay is also included:

UNSC vs. Insurrectionists

5v5 competitive structure

Played on the custom Sento map

Halo-inspired weapons but with CS2-like pacing and objectives

Each map features its own ruleset. For example, Ghost Town uses a one-flag CTF mode built on CS2’s hostage framework, featuring no respawns and standard buy phases.

How It Plays: Halo’s DNA Running Through Source 2

PC Gamer’s Morgan Park describes Project Misriah as far more than a nostalgia mod. It attempts to faithfully recreate Halo 3 mechanics—lower gravity, classic movement, reduced TTK, and Halo’s unmistakable sound design.

Even brief play sessions reveal just how well Halo’s traditional design pillars—power positions, sandbox balance, and vertical map layout—translate into CS2’s modern engine. Park notes that, since CS2 avoids heavy ADS, hero classes, or extreme movement tech, it becomes a surprisingly strong foundation for Halo-style arena combat.

Another outlet, 1v1me, calls the project a “full Halo experience inside CS2,” praising the natural feel of Halo-like movement, weapons, and announcer audio inside Source 2.

Modders’ Open Letter to Valve: “We Need Proper Tools”

Alongside the mod’s release, the creators included a detailed note to Valve outlining several technical issues that hinder development:

Missing AG2 animation tools, preventing proper adjustment of weapon animations after upload

Weapon-data overrides breaking when Workshop items are published, causing recoil and damage values to reset

Material and scope bugs, where crosshairs, text, and scoped materials break on publication

The team thanks Valve for enabling scripting in CS2 but stresses that Source 2’s toolset is still incomplete.

PC Gamer echoes this criticism, noting that the original Source engine became the foundation for countless iconic mods and standalone games—while Source 2, despite its capabilities, remains effectively limited to CS2 and Deadlock. The long-promised Source 2 SDK still hasn’t been released, and projects like S&box are shifting away from traditional FPS modding.

How to Play Project Misriah

There are two official ways to try the mod:

1. Subscribe on the Steam Workshop

Players can subscribe to the Project Misriah: Halo Ports collection, which includes all Halo maps and the ODST-style content.

2. Join the Community Server

The modders and community members operate a dedicated public server:
135.148.136.190:27015

A second 64-slot server is also running, focused on chaotic, large-scale Workshop map rotations.

Community Reactions: “Finally Counter-Strike but Good”

Early feedback has been overwhelmingly positive:

Workshop commenters call the maps “banger” and express excitement about server support.

A widely shared post on X promotes the release trailer with the caption “Finally Counter strike but good.”

Members of the Dust2.us community note that servers are already active and organized, showing genuine player interest rather than a fleeting novelty.

Related News That Adds Context

Dust2.us Coverage

Dust2.us confirms Project Misriah’s objective: delivering a Halo 3–like multiplayer experience inside CS2. They report that maps are releasing gradually and note the timing aligns with Halo Infinite’s final content update, after which 343 Industries announced multiple new Halo games are in development.

1v1me Analysis

1v1me highlights the mod’s attention to detail—from Spartan models and custom weapons to regenerating shields and Steitzer-style announcer lines—emphasizing how surprisingly well Halo mechanics adapt to Source 2.

Other CS2 Modding Successes

Dust2.us recently covered a separate project where a modder recreated Minecraft mechanics inside CS2, showing how powerful Source 2’s scripting layer already is when pushed.

CS2 Monetization Coverage

Recent CS2 reporting has focused heavily on Valve’s economic systems, such as the Genesis Uplink Terminal, which exposes skin buy/sell offers reaching into the thousands of dollars. These stories underline the contrast between Valve’s monetization efforts and the comparatively slow progress on modding support.

Why Project Misriah Matters

Between Halo 3 arenas rebuilt in CS2, Minecraft-style scripting experiments, and the modders’ own call for better tools, a consistent theme emerges:

Source 2 has enormous untapped potential.

What the community can already achieve—without a full Source 2 SDK—suggests that Valve is sitting on an engine capable of powering the next generation of moddable shooters. For now, that creative spirit is being kept alive by ambitious community projects like Project Misriah.

Whether Valve chooses to support this wave of experimentation will likely determine if Source 2 becomes the next Source… or remains a limited platform for a single competitive shooter.