When Call of Duty: Mobile Season 4 — Eternal Prison launched on April 22, 2026 at 5 PM PT, it arrived carrying a lot more than a new Battle Pass. Activision sold it as one of the biggest seasons of the year: Rebirth Island replacing old comfort zones in Battle Royale, a full Godzilla x Kong Monsterverse crossover, DMZ: Recon upgrades, a new DP27 LMG, the Toxic Overload Battle Royale class, and a broader competitive shift through League Play and esports-facing settings.

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That kind of patch can go one of two ways. It can feel like a genuine leap forward. Or it can feel like a bloated update that asks a lot from players’ storage, patience and devices without paying it back in fun.

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Season 4 mostly landed on the right side of that line. Mostly.

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For players in Nigeria, Kenya and South Africa, where a lot of the CODM audience is still playing on mid-range phones and juggling storage pressure, the patch’s biggest question was simple: would all that spectacle still feel smooth enough to be worth it? Carry1st’s own Season 4 preview framed the update around exactly that local reality, noting that the rollout hit Africa in the early hours of April 23 and spotlighting the season’s Rebirth Island asset expansion, new BR systems and major crossover content for local players.

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The short version: Season 4 was an 8.5/10 season. It looked huge, felt faster, and gave Ranked and Battle Royale players more to chew on. But it also came with the kind of quiet friction, grind slowdowns, launch-week bugs, and movement tweaks; that stopped it from being an all-timer.

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The Big Win: Rebirth Island Was Worth The Disruption

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The smartest thing Eternal Prison did was commit to Rebirth Island properly.

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Activision’s official Season 4 announcement made Rebirth Island the center of the update, bringing it to both Battle Royale and DMZ: Recon while adding UAV Towers, Contracts, Buy Stations, Killstreak purchases, and an updated visual pass across the map. The same blog also confirmed changes like unlimited redeploys in Resurgence conditions and a new extraction structure for DMZ: Recon.

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And in practice, that shift worked.

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Rebirth Island gave CODM the kind of pace injection it needed. It made matches feel less sleepy, less spread out, and far more decision-heavy. UAV Towers sped up information flow. Contracts gave players more reason to move aggressively. Buy Stations added mid-match economy and urgency. Instead of just landing, looting and hoping, Season 4 let players build momentum.

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That matters for African players especially because faster, denser BR design tends to reward shorter, more focused sessions. If you’re playing on unstable data, in-between power, or on a phone that doesn’t love oversized maps, Rebirth Island’s tighter design is easier to commit to than a slower BR match that asks for more time and more patience.

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In a season full of headline features, this was the clearest one that actually changed how the game felt.

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Godzilla x Kong Gave The Season Its Identity

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A lot of CODM collaborations come and go as themed cosmetics with very little staying power. Godzilla x Kong felt bigger than that.

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Season 4’s official announcement and launch materials made the Monsterverse crossover one of the season’s defining attractions, with Titan-themed operator skins, a dedicated themed event, Godzilla and Kong lucky draws, and crossover rewards woven into the season calendar.

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That crossover mattered because it gave Eternal Prison a strong identity beyond patch notes. Even if you didn’t care about every draw, you knew what season you were in. CODM likes its spectacle, but this was one of the cleaner examples of the game making a collaboration feel like an event rather than a shop refresh.

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And for a mobile-first game, that matters. People remember seasons that feel distinct.

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The New Additions That Actually Stuck

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Season 4’s new gameplay tools were not just there for decoration:

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DP27 LMG
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The DP27 arrived as the season’s new free Battle Pass weapon. Activision described it as a high-damage, high-capacity LMG with a distinctive top-mounted pan magazine, and made it one of the season’s headline free-tier unlocks.

What made it work was not novelty alone. It felt like a believable, versatile addition rather than one of those weapons the game pushes hard for two weeks and then forgets. It gave players another viable option in a season where suppression, lane control and drawn-out fights mattered more.

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Toxic Overload
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The new Toxic Overload BR class was one of Season 4’s quickest wins. Activision said the class could douse areas with radiation that slows and damages enemies, making it useful for locking down lanes and pressuring movement.

That role made immediate sense in chokier fights, especially on Rebirth Island. It gave squads a practical utility tool instead of just another gimmick. And it was exactly the kind of class that players pick up fast because the value is obvious.

In a season built on momentum and pressure, that fit perfectly.

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League Play Was The Season’s Real Competitive Shift

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The least flashy but most important Season 4 addition may have been League Play.

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Pre-release footage and community previews around Season 4 showed League Play arriving as a new higher-skill mode tied to Legendary multiplayer rank access. The wider 2026 CODM esports structure also supports the season’s competitive direction: Activision’s official esports pages show a refreshed 2026 World Championship format and updated esports settings built around tighter competitive map pools and rules.

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That shift matters because CODM has long had a gap between “ranked” and “actually competitive.” Season 4 did more to narrow that gap.

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The move toward stricter rulesets, more curated competitive conditions and longer-score modes helped separate casual grinders from players who actually want structure. It made ranked-adjacent play feel less like pure volume and more like proof.

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Not every player will care about that. But the ones who do are exactly the ones who keep a game healthy over time.

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The Season Wasn’t Painless

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This was not a perfect season, and pretending otherwise would make the review less useful:
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The free-to-play grind felt slower
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One of the early community complaints was that Elite Missions or comparable challenge-token progression did not feel as generous or as active at the start of the season, leaving some players feeling like the F2P grind had slowed down. That frustration showed up quickly in community discussions once Season 4 went live.

That matters because CODM has trained players to expect a certain rhythm of free progression. When a season feels larger visually but stingier structurally, people notice immediately.

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Launch-week bugs didn’t help
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Season 4 also had technical hiccups. Official patch-note posts on the CODM Facebook page confirmed fixes for bugs involving damage multipliers, including a Vantage / Sniper’s Mark issue where a multiplier could continue even after a player was downed.

That may sound niche, but launch-week bugs in a season this ambitious make players less patient with everything else.

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The movement crowd noticed the slide changes
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Seasonal mechanical tuning is normal, but subtle changes to movement always land badly with veteran players who’ve built muscle memory around them. Even when not front-and-center in official marketing, these are the kinds of changes that players feel before they can fully explain them. In a season already asking people to adapt to a new BR rhythm, that movement fatigue was real; especially for players who live off flow and aggression.

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The Mid-range Device Question

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This was one of the season’s quiet tests.

Rebirth Island, visual upgrades, Titan event assets and new system layers were all great on paper, but they also added weight. That is a real concern in African gaming hubs where many players are still on older or mid-range Android devices and do not have unlimited room for “huge update, just clear 8GB somehow” energy.

Season 4 did not collapse under that pressure, but it definitely leaned harder on device tolerance than a smaller update would have. Carry1st’s own African-facing preview was right to frame optimization and storage as part of the story, because for a lot of players here, a season is not only about content. It is about whether your phone agrees to participate.

The good news is that the actual gameplay gains mostly justified the extra weight. The bad news is that CODM cannot keep stacking spectacle forever without making that tradeoff sharper.

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Final score: 8.5/10

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That’s the number. Season 4 — Eternal Prison was a major visual and mechanical step forward. Rebirth Island felt like a meaningful upgrade. Godzilla x Kong gave the season real personality. DP27 and Toxic Overload were worthwhile additions. And League Play signaled that CODM is still serious about separating high-level competition from ordinary ranked chaos.

But the season also lost points for the things players feel quickly and resent for weeks: slower free progression, early bugs, and the subtle fatigue that comes when a patch asks more from both your habits and your hardware.

That is why it lands at 8.5, not 9 or 9.5.

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Looking Ahead

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Even with Season 4 mostly delivering, the next conversation is already forming around Season 5, expected around May 27 based on community timing and leak chatter. The unofficial buzz points to a possible The Boys crossover and a dark fantasy Mythic Kui Ji operator, but those details remain in leak territory rather than official announcement territory right now.

So the smart move is not to treat them as confirmed. It is to treat them as the next wave of hype. What is confirmed is simpler: if you are still on the fence about your Season 4 Battle Pass progress, the clock is already moving. And if you want to close out the season cleanly before the vault shuts, this is the point where CP decisions stop being “later” and become “now.”

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If you still need to lock in your final Season 4 tiers, now is the time to top up COD Points on the Carry1st Shop before the season rotates out.