ARC Raiders Update 1.39.0 ABMM Matchmaking | Defensive PvP Changes Create New Problems
Category: ARC Raiders Posted: Jul 31, 2026 Views: 16
ARC Raiders' ABMM matchmaking system is no longer much of a secret. If you actively attack other players, you will be placed into PvP-oriented matches. If you consistently remain friendly, you will be matched with players who behave in a similar way.
This system appears to naturally separate the two types of players, but once everyone understands how ABMM matchmaking works, some players with bad intentions can exploit it, even in supposedly friendly matches.

ABMM Matchmaking Optimization
As the player population has declined, the official team has been continuously adjusting the matchmaking system. Update 1.38.0 was automatically applied as a hotfix. Although it appeared to be a regular shop update, it actually included an important test.
The update mainly targeted matchmaking optimization during low player count periods, in specific regions, and under certain map conditions. The goal was to achieve more accurate matchmaking based on squad size and play style.
This could slightly increase Q times. The official team explained that the algorithm may take a little longer to find more suitable matches. This was only a test and not a permanent change.
More Advanced Tracking System
The key focus of this test was player playstyle rather than simply rank or squad size. The studio used a behavior spectrum system instead of dividing players into a simple "friendly" and "aggressive" binary. The system analyzes repeated behavior across multiple raids rather than making judgments based on only one or two matches.
The system distinguishes between players who actively initiate fights and those who only fight back in self-defense. Therefore, a single elimination will not immediately change your matchmaking profile.
Interactions with other players that occur rarely throughout an entire raid have very little impact on the overall profile evaluation. The system separately tracks behavior depending on whether you play solo, duo, or trio modes. This means you can enter more aggressive matches with friends while still being matched into friendlier environments when playing alone.
It should be clarified that expensive high-tier equipment does not automatically place you against stronger opponents. There is also no exclusive matchmaking system that completely removes PvP. The system only increases the possibility of players with similar styles encountering each other, but it is not absolute.
Live Update 1.39.0
Although Update 1.38.0 appeared to be a positive change, Live Update 1.39.0 released on July 28 caused some players to exploit the matchmaking system.
Defensive PvP adjustment changed how defensive actions were evaluated. Previously, players who fought back against attackers would still affect their PvP tendency score. The new test removed defensive actions from affecting matchmaking style and only counted behavior where players actively initiated combat.
However, players quickly discovered that this system contained an exploitable loophole. The method was that, in PvE-focused matches, some players with malicious intentions would deliberately jump in front of teammates or other players who were attacking large targets such as Queen, intentionally forcing themselves to be hit.
Once these players were shot, the system would determine that they had suffered an unfair attack. They could then legally retaliate without receiving penalties for "aggressive behavior." As a result, these fake PvP players could remain in low-aggression "peaceful" matches while continuing to take other players' loot. This type of intentional provocation has caused widespread reports and complaints within the community.
What Problems Does This Create?
When ARC Raiders first launched in October and November 2025, matchmaking was completely random. Players never knew whether they would encounter friendly players or intense PvP battles in the next match. This uncertainty was one of the game's core appeals.
However, the introduction of ABMM artificially divided matches into two categories: PvP-oriented and PvE-oriented. For players who only want PvE matches, being forced into PvP encounters is undoubtedly frustrating.
How Can It Be Solved?
Separate PvE
Based on the current situation, many players in the community believe the ideal solution would be to return to the early fully random matchmaking system. A separate pure PvE mode could satisfy players who have no interest in PvP.
Meanwhile, in the main PvPvE mode, ABMM system should be completely removed. In addition, adding pure team deathmatch or PvP competitive modes similar to Stella Montis could help separate different player preferences. This would allow different groups to enjoy the experience they want and potentially bring back players who left because they disliked PvP.
Security Protocol
Security Protocol system in China server is also considered a strong alternative solution. During an interview, ARC Raiders development team in China revealed that the official team is open to sharing ideas and data, meaning some systems from China server could influence the global version in the future.
During testing, Security Protocol mode became increasingly popular, with around 60% of players choosing to activate it during peak hours.
Security Protocol requires players to actively enable a red antenna marker to show hostile intent. Otherwise, they are treated as PvE players by others. This gives all players a warning instead of allowing one-sided betrayal. The design does not eliminate PvP, but instead makes hostile actions more transparent.
Exploits and matchmaking design issues are gradually damaging ARC Raiders' fairness and replayability. At the same time, widespread cheating is striking directly at the game's foundation. To restore player trust, the development team needs to make more careful adjustments to the matchmaking system or provide an entirely different game mode.
Being betrayed in a peaceful match is far more hateful than being killed by other players in a PvP game. If you are unfortunately killed by these despicable rats, you can buy ARC Raiders items from IGGM, then forget about ABMM matchmaking system and get your revenge on them.
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