In most games, you choose a class that defines your appearance. In Marathon, you have a Shell to define how you live.
For comparison, in Destiny 2, switching subclasses changes your kit but not your fundamental role on the map.
Additionally, in Marathon, you cannot choose the wrong Shell for your team.
Then, it means that someone is being dragged in the wrong direction.
Also, in this extraction shooter, where every wipe wipes away all of your loot, that is a problem.
But have you wondered how marathon shells work?
For new players, the Shell system can be overwhelming before you learn the effects of Cores and Implants.
Many players who just want to skip past early learning and jump straight to experimenting with builds use Marathon boosting to unlock the basics.
Actually, there are no truly bad Shells here. They all have their merits. However, they are not all equally user-friendly, nor are they all the same. Here is what you get in each.
What Are The Different Types Of Marathon Shells?
Now that we have a minimum idea of how marathon shells work, I think it's time we take a look at the different varieties of marathon shells.
1. Destroyer: Frontline Brawler
The most deceptive Shell in the roster. It looks like a defensive Shell, with an energy shield.
In addition, you will also get to see a lot of homing missiles and thrusters on its legs.
But the skillful Destroyer uses it all to advance. Therefore, the shield does not drop out of the sprint.
The thrusters allow you to sprint during combat. Destiny 2 players will feel like they are back with their Titans.
The Shell for you if you like to hit first and hit hard. Easiest Shell to play, by far.
2. Assassin: Stealth Flanker
The most skilled and controversial. Additionally, total invisibility is game-breaking.
But there is an exception. The faster you run, the less invisible you are.
In addition, you are visible if you take damage, fire, or use an ability. A smoke grenade Prime with invisibility provides one pure shot.
Also, I would like to add that no fall damage means a path for other Shells.
So, when it is in skilled hands, it is terrifying.
However, if it is in unskilled hands, it's just a flanker with half as many moves as they think.
3. Recon: Intel And Tracking
In any extraction shooter, intelligence is kingpin, and Recon sells it. Echo Pulse pulses sonar to disclose enemy positions.
A tracking drone finds enemies and explodes on impact to burn them.
A trait that tells you when you are pinged, another that leaves a trail when you break an enemy shield, this Shell is a game of information.
This Shell is S-tier for three-person play.
4. Vandal: Mobility Disruptor
The most difficult Shell to play, and the cruelest if you don't have enough experience.
The Vandal is all about Heat. His movement abilities create heat, and overheating turns you from a threat to a target.
Use the heat well, and you are invincible: air jumps, speed bursts, Disruptor shots that pave the way into enemy cover.
Play it wrong, and you are meat in the mill. Huge potential, steep learning curve, very rewarding.
5. Thief: Loot Specialist
Easily underestimated. The X-Ray Visor's ability to see loot containers (and enemies) through walls alters your perception of the environment. A grapple hook for repositioning.
The Pickpocket Drone is a remotely controlled device to force enemies and enemy AI to lose loot.
And a passive skill that benefits from being fully encumbered.
The more stuff you carry, the faster your guns feel and the faster your grapple recharges.
Surprisingly, one of the best Shells if you take Marathon's economy as seriously as its combat.
6. Triage: Team Medic
Everyone needs one on an extraction raid. No one wants to be one until they see what Triage can do.
Capacitive Gauntlets allow you to resurrect your teammates from a distance or stun enemies.
An all-health-shield healing drone. A Battery Overcharge trait that causes your weapon to burst with an EMP when you de-shield an enemy.
Triage is a combat healer, not a passive support.
7. Rook: Solo Scavenger
Rook is a creature of its own. Choosing it puts you in the middle of an ongoing game, alone, with a bare-bones loadout.
You go in with nothing and risk nothing.
You have a tactical skill allowing you to disguise yourself as AI enemies on the map and become invisible to them.
The upside is that you can keep the loot you pick up.
The downside is that everyone else knows what a spare kit you have.
So, you will be targeted. Rook is the starter class for Marathon: a chance to loot with no risk. It is a great kit once you have upgrades.
Quick Tier Snapshot (Early Meta)
Based on community feedback and early ranked data, here is where the Shells roughly sit right now. This will shift, but it gives you a starting point if you're deciding where to invest.
- S-tier: Triage, Thief, Recon — near-essential in organized trios. Each brings something the other two can't replace
- A-tier: Destroyer, Assassin — consistently strong. Destroyer is the best solo carry, and Assassin rewards skill investment
- B-tier: Vandal — genuinely powerful but demands Heat management that takes real time to learn
- C-tier: Rook — not a real competitive option yet. Its value is onboarding, not ranked viability. High potential once faction upgrades mature
Treat this as a snapshot. Marathon is still very new, and the meta is still being actively figured out.
A Shell that looks weak today can look indispensable after one good player puts out a two-hour breakdown of what it actually does.
How Marathon Shells Work Explained
The Shell system is Marathon's best idea. It is also its most unfinished one. The concept is genuinely fresh.
Also, I would like to add that the classes act as a starting point, not a definition.
The depth of Cores and Implants means two players in the same Shell can feel like different games.
And the squad-composition layer adds a strategic dimension that most extraction shooters do not even attempt.
But some abilities feel like they bypassed the balance pass.
Therefore, the Rook needs more work to compete in serious play. In addition, the meta is still young enough that the full picture is not clear yet.
Check back in 60 days. The bones here are excellent.
