Two Sierra
⚪ Last updated 2022This mod may not work until the author updates it. Check for an update, or see the rollback guide.
Preview

🔍 Analysis
- 🏆 #14 of 59 Miscellaneous mods in this game by downloads
📋 About This Mod
The Two Sierra campaign follows a NRF VJTF platoon during three tours of duty. Each tour takes place in a specific ‘Armaverse’ driven by a storyline loosely based on historical facts. The campaign missions support up to 36 players (30 + 6 JIP).
FEATURES
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[]3 tours of duty, 12 missions + 3 warmup missions offering challenging and Immersive gameplay in a lively area of operations;
[
]Each mission is accompanied with a detailed operations order (OPORD’s in-game and PDF/TXT for forum briefings), AO map and additional intel;[]Pre-configured TFAR for quick game start.
[]Media (PDF, images) to be used with forum postings (mission cover image, AO map, objectives, etc.).
[]Optimized for dedicated server play;
[]Challenging opponents;
[]Automatic detection of ACRE2/ TFAR, cTab and ACE3 add-ons.
[]Optional mod compatibility (RHS/Project Opfor/3CB Factions -or- CUP/CFP) for BluFor & OpFor
MISSION BALANCER
Since v1. 05 the Two Sierra missions are balanced based on the number of players active. Few notes:
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[]Less players = less OpFor / more players = more OpFor
[
]Recommended min. players: 12[]Mission balancer setting can be overruled using the mission params at mission start.
[]Tour 1 and 2 warmup missions have mission balancer running. Tour 3 has no mission balancer.
Steam Workshop: https://steamcommunity.com/workshop/filedetails/?id=530541775 [v 1. 13]
Facebook: https://www.facebook.com/two.sierra.arma/
REQUIRED ADD-ONS
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[]Community Based Addons ARMA 3 (CBA_A3)
[
]CUP Terrains
To enhance game play, the following (optional) client add-ons are recommended:
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[]Advanced Combat Radio Environment (ACRE) -or- TaskForce Arrowhead Radio (TFAR)
[
]Advanced Combat Environment 3 (ACE3)[]Commanders Tablet (cTAB)
[]RHS + Project Opfor and/or 3CB Factions --OR-- CUP Units and Community Factions Project
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[]Community Based Addons ARMA 3 (CBA_A3)
-
[]Less players = less OpFor / more players = more OpFor
Two Sierra is a 37-slot ARMA 3 multiplayer campaign with 3 tours of duty, 12 missions plus 3 warmup missions, offering challenging and immersive gameplay in a lively area of operations. Each mission includes detailed briefings, making it a substantial content addition for co-op groups.
✨ Key Features
📊 Pros & Cons
✅ Pros
- 11 endorsements from the community
- 429 downloads indicate interest
- Regularly updated as of September 2022
⚠️ Cons
- Low endorsement count suggests limited community validation
- Requires ARMA 3 and likely a group of players to enjoy
- Campaign length may be overwhelming for casual players
This mod is for ARMA 3 players who enjoy structured, story-driven multiplayer campaigns with a dedicated group. It's ideal for milsim communities or co-op squads looking for a lengthy, immersive experience. Casual players or those without a regular group may find it less accessible.
💡 Beginner Tips
- Ensure all players have the mod installed and loaded before starting the campaign.
- Coordinate with your group to assign roles and plan strategies for each mission.
- Use the detailed briefings to understand objectives before diving in.
📊 Mod Details
- Game
- Arma 3 Mods
- Author
- Whiztler
- Version
- 1.13
- Downloads
- 429
- Endorsements
- 11
- Category
- Miscellaneous
- Created
- 9/11/2022
- Updated
- 9/11/2022
🔧 How to Install ArmA 3 Mods
Subscribe on Steam Workshop. Enable mods in Arma 3 Launcher.
📖 Full step-by-step install guide for ArmA 3 →
Visit the official mod page for specific installation instructions for this mod.
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