Rainbow Six Siege X Y10S4.2 Patch Preview: What Has Changed

The Rainbow Six Mobile Y10S4.2 update, coming on January 20, is a focused mid-season balance patch. It highlights improving operators that perform below par, upgrading gadget usability, and fixing gameplay issues that have been hanging around. Instead of drastically changing the meta, Ubisoft has put most of its efforts into the practical effectiveness, round-to-round relevance, and quality of life improvements in the Rainbow Six Siege Y10S4.2 patch notes.

Rainbow Six Siege X Y10S4.2 Patch Preview: Major Balancing Updates

These are the biggest changes players will be getting in the upcoming Rainbow Six Siege X update.

Thorn - Complete Direction of Trap Rework

Thorn is getting the biggest changes this patch in Rainbow Six Siege X.

Whats Changed

• Razor Bloom Shells operate much quicker now after locating an attacker.
• The number of shells raised, thus allowing broader area coverage and placing them in the middle of the round.
• Damage decreased, but lethality is made up for by speed and debuffs.
• Survivors suffer a 15-second bleed and move more slowly, just like with Frost traps.

Gameplay impact

• Thorn is no longer restricted to Preparation Phase setups only.
• Razor Blooms can punish attackers even if they get away from the blast.
• Area denial has become much stronger, and there is great post-plant pressure.

Mozzie Super Shorty is Back

Mozzie retrieves the Super Shorty shotgun as a secondary weapon, restoring him to the tool he lost in Year 5.

Gameplay impact

• Increased flexibility for roaming and site setup.
• Better soft-destruction without sacrificing primary weapon choice.
• Reinforces Mozzies' role as a self-sufficient intel denier.

Echo Increased Drone Availability

Echo gets an extra Yokai drone, raising his total from two to three.

Gameplay impact

• More options to deny plants and gather intel.
• Longer survival in rounds without directly increasing the power of the Yokai.
• Improved efficiency in coordinated team play.

Rainbow Six Siege X Y10S4.2 Patch Preview: Refinement and Quality-of-Life Changes

These changes are not meant to drastically alter the game meta but to help improve the user experience and consistency.

Osa

Faster Talon Shield deployment allows for better survivability during the setup phase.

Capito

Longer incendiary burn duration makes area denial more reliable.

Lion

Prolonged scan duration slots easier timing and better coordination with the team.

Maestro

More battery life to the Evil Eye means more lethality without the operator being present. Recharge duration adjusts accordingly.

Jackal

Increasing the scan range allows for safer tracking not only from a distance but also across floors.

Weapon Adjustment

These are the weapon adjustments that will be introduced in the upcoming patch:

UMP45 Buff

The UMP45 gets a minor but notable damage increase, besides the recoil that is more manageable.

Gameplay impact

• Maintains competitiveness with other SMGs even though it has a slower fire rate.
• All base armour types can now be downed in three bullets.
• More reliable for operators who use the weapon frequently.

Bug Fixes Overview

Alongside Y10S4.2, the release also fixes a few technical and usability issues:

Gameplay

• Fortress was incorrectly detected as an outdoor area.
• AI lost its path, and the defuser interaction did not work.
• Unlimited AI contextual ping usage.
• Recoil issues with PMR90A2.
• EMP is unable to affect Kanal metal detectors.

Level Design

• Vault blockage fixed in Fortress Commander's Office.

User Experience

• In-game Report Player menu panel navigation fixedAudio.

Audio

• Solved the missing melee weapon handling sound effects bug.

Overall Impact Summary

Y10S4.2 is a polish-focused update that strengthens underperforming tools while maintaining Siege Xs current competitive balance.

• Thorn becomes a viable, round-long threat rather than a niche trapper
• Mozzie and Echo get more flexible without a power increase
• Refinements help operators to stay more consistent
• Weapons and bug fixes lead to a more stable gameplay

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