Gears of War: E-Day Horde Siege Explained — 12 Players, 3 Squads, 4 Classes

Horde Siege is the new 12-player cooperative mode in Gears of War: E-Day, and the short version is this: instead of one team of four or five holding one spot against waves, you get three separate squads of four running their own missions on the same map at the same time. The game is developed by The Coalition and published under the Xbox Game Studios banner, and it launches October 6, 2026 on Xbox Series X/S and PC. This guide breaks down how the mode is structured, what the four classes actually do based on what’s been shown so far, and what still hasn’t been confirmed with two months left before release.

In the classic Gears Horde formula, everyone in the lobby shares one problem: hold a location, survive the wave count, don’t die. Instead of four or five players holding down one location, Horde Siege supports up to 12 players, split into three squads of four. Set across the biggest multiplayer maps ever seen in the series, Horde Siege sets three squads of four out on their own individual missions across the same stage, resulting in wildly unpredictable battles. That’s the entire shift you need to understand before your first match: three teams, three different jobs, one battlefield.

The core loop still feels like Gears. The core objective of Horde Siege is still fundamentally Gears: survive the Locust, support your squad, and use every bit of firepower you can to come out on top. What’s different is scale and independence. Squads don’t share a single objective list — they run parallel missions across the same city district, and what happens on one side of the map can spill into the other.

Resources are handled at the squad level rather than the full lobby. Energy is shared within each four-player squad, while every player chooses how to spend their share. Bigger threats can force squads together whether they planned on it or not: Large Invasion Events can bring a Corpser or Brumak onto the map and affect all three squads, and a major enemy can block extraction or shut down supply points until players deal with it. There’s also a persistence layer that rewards squads for finishing early — each squad drops in with its own mission, but the squads’ paths cross throughout, and if a squad extracts ahead of you, their fortifications and equipment stay on the map for your team to find and use. That’s the mechanical reason cooperation between squads is a choice rather than a requirement: it can genuinely help, but nothing in the objective structure forces it.

Every player picks a class before deploying, and that choice sticks for the run. Horde Siege features distinct classes, each defined by its own unique starting loadout, combat bonus, unlock progression, and Tactical Gear — a powerful piece of combat equipment with a timed cooldown. Each class levels independently up to 30, and higher levels unlock new weapons, equipment, Armor Mods, Tactical Gear improvements, and Weapon Mods, along with base increases to health and damage at key milestones.

All four classes have detailed public breakdowns, including Medic, whose Stim Vaporizer heals and revives nearby Gears. Treat the table below as confirmed for all four classes, including Medic.

Weapon customization is new for the series and sits alongside class picks. Weapon Mods represent one of the more notable additions for a mainline Gears game, and once unlocked through class progression, mods are purchased with Weapon Parts earned in matches. Weapon customization is shared across classes, so work done on a Lancer for Assault carries over if that weapon is equipped on another class. Familiar tools carry over too — the iconic Lancer remains immensely satisfying with its chainsaw executions, the Gnasher shotgun and Snub pistol return, and the active reload system is back, rewarding well-timed reloads and punishing sloppy ones.

Because classes are chosen once at squad select rather than swapped mid-mission like a loadout, the real decision happens in your pre-game lobby, not in combat. That’s a different rhythm from games where you buy your way into a role as the match goes on — here, the four of you commit up front.

If your squad is missing a Medic

Skip the temptation to stack damage classes. A four-person squad with no dedicated support tends to feel wipes harder on longer playlists, since reviving and sustaining the squad falls on whoever’s closest instead of a class built for it.

If you’re running the long Horde playlist

Horde-mode missions are a tougher grind with 10 waves of enemies and limited support, and can last up to 50 to 60 minutes. That length rewards a balanced squad — Assault for sustained fire, Breacher for clearing rushes, Marksman for picking off priority targets, Medic for keeping everyone standing.

If you want flexibility over specialization

Assault is built to fit multiple situations rather than excel at one extreme, which makes it a reasonable pick if your squad’s other three slots are already locked into specialized roles.

Difficulty is tied to class level rather than a separate slider you set yourself. The higher the class level, the higher the difficulty can be selected, with Infantry recommended for class levels 10 to 20 and Commander recommended for class levels 20 to 30. Difficulty scales with class level, the game suggests a level based on your progression, but the final choice belongs to the squad.

Three squads sharing one map sounds like it could turn adversarial, but it isn’t built that way. Every squad you run into is fighting the same Locust forces you are. Any competitive tension in E-Day’s multiplayer lives in the separate Versus mode, where all modes are 4v4, designed around fair starts and balanced gameplay, with all players beginning each match with the same loadout weapons and equipment. Horde Siege doesn’t borrow that structure — crossing paths with another squad in Horde Siege means a possible assist, a shared threat, or nothing at all, never a fight against them.

Two months out from launch, several systems are still light on detail. Exact numeric values for combat bonuses (how much damage, how much cover boost, cooldown lengths on Tactical Gear) haven’t been published in full. Medic’s exact combat-bonus numbers haven’t been broken down publicly with the same depth as the other three classes. How loot, Weapon Parts, and Class XP get split or shared between three independent squads on one map isn’t fully spelled out. Matchmaking behavior for squads that don’t fill to four, and what happens if a whole squad disconnects, also hasn’t been detailed. Horde Siege launches with four classes, three maps, and a solid set of mission types and modifiers, and The Coalition has confirmed that new classes, maps, missions, and seasonal content will arrive after release as part of broader post-launch support. That confirms more is coming; it doesn’t tell us what.

What is confirmed is that this mode sits alongside the classic format rather than replacing it. The mode is designed to sit alongside traditional Horde rather than replace it — players who want the focused, single-squad wave experience will still have that option, while those looking for something larger, more variable, and more squad-oriented now have a purpose-built alternative. The official multiplayer deep dive and the Xbox Wire breakdown are the best places to check for updates as more of this gets nailed down before October.

Myth: Horde Siege is just old Horde with more people

It isn’t. The player count going from five to twelve is the least important number here. The actual change is that objectives are no longer shared — three squads can each finish, fail, or extract entirely independently of the other two.

Myth: You have to help other squads or you’re playing wrong

Helping is available, not required. Your squad’s mission is scoped for four people; the other squads showing up is a bonus, not a dependency.