Rex - Sonic Bark Upgrade
⚪ Last updated 2011⚠️ Install Order · 5 steps
Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.
Preview
🔍 Analysis
- 👍 5.7% endorsement rate — high engagement, a strong quality signal
- 🏆 #45 of 173 Companions mods in this game by downloads
📋 About This Mod
PLEASE NOTE THAT THIS MOD IS NO LONGER MAINTAINED OR SUPPORTED. IT WILL REMAIN UP FOR PEOPLE TO DOWNLOAD BUT DON'T EXPECT ME TO READ THE COMMENT THREAD OR REPLY TO PRIVATE MESSAGES REGARDING THIS MOD. CAVEAT EMPTOR.
Description
Requires Old World Blues!
This mod allows you to upgrade Rex with the sonic bark attack used by cyber dogs around Big MT. Once done you can switch him between ranged and melee attacks in the normal way via the companion wheel or by talking to him.
Find the upgrade holotape close to Doctor Borous in the Think Tank and then talk to Rex about installing it when you return to the Mojave.
Installation
Unzip in your Vegas data directory ("C:\Program Files\Steam\steamapps\common\fallout new vegas\Data" on my system) and make sure RexSonicBark.esp is checked under "Data Files" in the launcher. Obviously Old World Blues should be enabled too.
Other Useful Mods
If you'd like Roxie from X-8 to be a permanent companion, check my other mod here.
If you want to make Rex over to look like one of the Big MT's cyber dogs too, you might try this mod by chrissy_M_
For even more cyber dog companions, try this mod by DrakenGuard.
See the change log!
This mod upgrades Rex, the cyberdog companion in Fallout: New Vegas, with the sonic bark attack used by Big MT cyber dogs. It's a small, focused enhancement for players who want Rex to have a more powerful ranged ability. With 247 endorsements and 4,344 downloads, it has a modest but dedicated following.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Community-approved with 247 endorsements and over 4,300 downloads.
- Gives Rex a unique ranged attack that fits the Big MT lore.
- Lightweight mod that doesn't overhaul the game—just adds one ability.
⚠️ Cons
- Last updated in 2011—may have compatibility issues with newer game patches or mods.
- Only affects Rex's sonic bark; no other changes to the companion.
For Fallout: New Vegas players who use Rex as a companion and want to give him a more interesting combat option. If you're a fan of the Big MT DLC and want to bring that tech to the Mojave, this is a neat touch. Skip if you're looking for a major companion overhaul or if you don't use Rex.
💡 Beginner Tips
- Make sure you have the Old World Blues DLC installed, as the sonic bark attack originates from Big MT.
- If you're using a mod manager like Nexus Mod Manager, install this mod through it to keep your load order clean.
- Since the mod is old, test it early in your playthrough to ensure it works with your current setup.
📊 Mod Details
- Game
- New Vegas Mods
- Author
- adriant1978
- Version
- 1.0
- Downloads
- 4,344
- Endorsements
- 247
- Category
- Companions
- Created
- 7/21/2011
- Updated
- 7/21/2011
🔧 How to Install New Vegas Mods
Download from Nexus.
📖 Full step-by-step install guide for New Vegas →
Visit the official mod page for specific installation instructions for this mod.
🎮 Need cheat codes or console commands? Check ur gaming wiki for New Vegas commands, item IDs, and more.
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