Horde Siege in Gears of War: E-Day gives you four distinct classes to pick from, and the gap between the best and worst is wider than it looks at first glance. Picking the wrong class for your squad can mean slow revives, poor damage output, and waves that snowball out of control fast. This tier list breaks down every class, what makes each one work, and which one you should be running if you want to carry your team.
What makes a class S Tier in Horde Siege?
The tier criteria here are straightforward. S Tier classes can sustain themselves, contribute meaningful damage on boss waves, and bring something the rest of the team cannot replicate. A Tier classes deal solid damage and have decent survivability but fall short in at least one of those areas. B Tier classes work fine in a coordinated squad but are outperformed by every other option when played in isolation.
The Medic is the backbone of any serious Horde Siege run. Its Tactical Gear provides consistent healing that lets the Medic absorb more punishment than you'd expect from a support role, and when that gear is on cooldown, Stim Grenades fill the gap. That redundancy is what separates it from every other class: most specialists are vulnerable the moment their Tactical Gear is unavailable, but the Medic has a fallback ready.
On top of the survivability, the Medic gets early access to the Gut-Puncher, a grenade launcher that clears groups of enemies efficiently. This means the Medic is not just keeping allies alive; it's actively contributing to wave clear at the same time. Fast revives and heals also mean downed teammates spend less time out of the fight, which compounds across longer waves.
The Breacher earns its A Tier placement through one standout ability: the Adrenaline Injector fully heals the player on activation. That is not a partial top-up; it is a complete reset that effectively gives the Breacher a second life in any engagement. The Adrenaline Injector also reduces incoming damage and increases outgoing damage during its active window, making it ideal for pushing into close-range and mid-range fights that would delete other classes.
The trade-off is that the Breacher's utility is almost entirely self-focused. Outside of absorbing pressure and dealing damage, it does not bring much to the team. There is no crowd control, no healing for allies, and no information gathering. Its loadout options are strong across the board for damage, which keeps it competitive, but it cannot cover the gaps that a Medic fills.
warning
Do not run the Breacher as your squad's only frontline without a Medic present. The Adrenaline Injector is powerful, but it cannot compensate for a lack of team healing across extended waves.
Gears of War: E-Day Ultimate Class Tier List: Best Horde Siege Ranked
Marksman (A-Tier)
The Marksman brings two things to a squad: high single-target damage through sniper-oriented loadout options, and the ability to reveal enemies through its Tactical Gear. When paired with a Smoke Grenade, the Marksman lets the entire team shoot through smoke while staying in cover, which is a meaningful tactical advantage on the right maps and wave configurations.
The ceiling on the Marksman is high, but it requires good aim and a willingness to play at range. Players who can consistently land sniper shots will find the Marksman genuinely threatening against bosses. Players who struggle with precision will find the class underperforms relative to its A Tier placement. The class also depends on using cover correctly to maximize its kit, which adds a skill floor that the Breacher and Medic do not have to the same degree.
tip
The Marksman's enemy reveal synergizes directly with teammates who have area-denial weapons. Coordinate the reveal timing with your squad's heaviest hitters for maximum wave efficiency.
Assault (B-Tier)
The Assault is not a bad class. It deals good damage, its Tactical Gear can stun groups of enemies to create free-fire windows, and its mods can amplify damage against stunned targets or improve stats while in cover. As an all-rounder, it covers most situations adequately.
The problem is that adequately is not enough when the other three classes each do something better. The Breacher tanks harder, the Marksman hits harder at range, and the Medic heals while still dealing competitive damage. The Assault's stun utility is real, but it is not unique enough to justify picking it over the A Tier options in most squad compositions. In a full squad where every role is already covered, the Assault can slot in fine. In a smaller group or when flexibility matters, it is the last pick.
Gears of War: E-Day Ultimate Class Tier List: Best Horde Siege Ranked
How to build the best Horde Siege squad
A four-player squad with one Medic, one Breacher, one Marksman, and one Assault covers every role, but if you are running with fewer players or want to optimize, prioritize the Medic first. No other class replaces what the Medic does for team sustain.
For two-player runs, Medic plus Breacher is the strongest combination. The Medic keeps both players alive, and the Breacher's Adrenaline Injector provides a safety net when the Medic's Tactical Gear is on cooldown.
For solo play, the Medic remains the top pick. The Gut-Puncher handles groups, the Tactical Gear handles survivability, and the Stim Grenades handle the gaps.
What about achievements tied to Horde Siege?
Playing Horde Siege with specific classes can contribute toward several progression goals. If you are tracking your completion percentage, the full achievements guide for Gears of War: E-Day lists every unlock condition and Gamerscore value so you can plan your class choices around what you still need to earn.