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Lambda Networks Presents
Zombie Survival
Reintroducing Zombie Survival
Zombie Survival is back! And now better than ever.
It plays like Call of Duty Zombies, with a Left 4 Dead style squad system and the guns and feel of Counter-Strike.
The Survivors
It was supposed to be a routine job. ÆTHERA DYNAMICS, a corporation so large that nobody has ever heard of it, hired two couriers to move one sealed case. Then it paid the Phoenix Connexion to ambush them and break the case open. The Lambda Security Directive knew the case was moving and went to intercept it, but arrived minutes too late.
The case held a virus. Within the hour, whole districts had turned. Now two couriers who were set up and two agents sent to arrest them are fighting on the same side.
Sir Bloody Darryl 'The Doctor' Romanov Special Agent Ava B Squadron Officer
Sir Bloody Darryl
Sir Bloody Darryl
The Professionals
Darryl has done a great many jobs for a great many people, and has never once asked what was in the case. Quiet money and no questions is how the Professionals work, and ÆTHERA DYNAMICS paid very well for it. Courier Assignment 7-B was one sealed case, a two-person move, and payment in full on delivery from an account that would close the same day.
He should have read that last part twice. The case is open, the city is dying, and the people watching his back are the ones who came to arrest him.
'The Doctor' Romanov
Balkans
Romanov checks the route, the exits and the people paying him. That is why nobody had ever caught him off guard, until the transfer point. The Phoenix Connexion were waiting there, with orders to crack the case and make sure no courier walked away to tell anyone.
Romanov walked away. He swears whoever hired them set them up, and he means to find out who that was once the city stops trying to eat him.
'The Doctor' Romanov
Special Agent Ava
Special Agent Ava
FBI
Ava's orders were clear: an unregistered biological cargo, two contractors with no listed employer, and a case to be secured unopened. The Lambda Security Directive got her team to the transfer point minutes after the Phoenix hit. The case was open, and the street was already turning.
Her report names ÆTHERA DYNAMICS, a company with no registry entry, no staff and no address. She doesn't trust the couriers. Right now, they're the only ones shooting the right way.
B Squadron Officer
SAS
Name withheld. Service record withheld. B Squadron joined Agent Ava on the intercept with one instruction: treat the couriers as hostile, and the case as lethal.
The officer was right about the case. Now command wants the couriers brought out alive, as the only witnesses to a company that doesn't exist. Keeping them breathing long enough to testify is the officer's job.
B Squadron Officer
A squad holding out against the infected on wave 1
Survive Thirty Waves
Can you survive all 30 waves? Every wave is harder than the last. The infected get tougher as the waves go on, and every boss that turns up is meaner than the one before it.
The early waves forgive your mistakes. The later ones won't. By then, staying alive comes down to skill: your aim, your positioning and how well your squad holds together.
The Tablet
Every survivor carries a Field Tablet. Order supplies, install upgrades, scout the next wave and check on your squad, all on the move.
Delivery Drones
Order from the tablet and a drone flies your crate across the map, following you until you stop to collect it. Keep it clear of bosses, or they'll knock it out of the sky.
Sentry Turret
Have one flown in, set it down where you need it, and it holds the spot for wave after wave.
Upgrades
Faster reloads, more health, a second wind and more. Carry up to four, and lose them all if you fall.
The Intel screen on the tablet, previewing wave 8 and the next boss
Intel
See the next wave before it arrives: how many, what kind, and which boss is coming. Add the motion tracker to see zombies on your radar.
Transmissions
Every third wave you clear decrypts an intercepted message, revealing what really happened. Your collection follows you to every map and server.
The Transmissions screen on the tablet, showing a decrypted message
Rush
Introducing Rush
Floor it. Rush is a new fast-paced 3v3 queued mode on LambdaNet. Push and pull your way through a gauntlet of randomly selected arenas, and outplay the other team to take the match.
Every round gives you a tight budget and very little time. To win it, your team has to hold the tower when the last enemy falls, or when the clock runs out.
The Arenas
Every match opens in a random starting arena, then pushes and pulls through randomly selected battle arenas. Drive the enemy all the way back and you'll be storming their castle, their final line of defence.
Mini Office
Starting Arena
Mini Office
Desert Bunker
Starting Arena
Desert Bunker
Barnyard
Starting Arena
Barnyard
Shipment
Starting Arena
Shipment
Pool Day
Battle Arena
Pool Day
Two Towers
Battle Arena
Two Towers
Autumn
Battle Arena
Autumn
Italy
Battle Arena
Italy
Warehouse
Battle Arena
Warehouse
India
Battle Arena
India
Train Station
Battle Arena
Train Station
Hangar
Battle Arena
Hangar
CT Castle - Dust
Final Defence
CT Castle - Dust
T Castle - Sky
Final Defence
T Castle - Sky
Halloween 2026 Terminal
Halloween 2026 Terminal
Agents
Every agent from CS:GO and CS2 has arrived, and all of them are available now in the Operation Event Horizon Store.
Map-Based Factions
Who you fight as now depends on where you're fighting. Each map has its own factions, including the GSG-9, GIGN, FBI, Balkans, the Professionals and more.
GSG-9
GSG-9
GIGN
GIGN
FBI
FBI
Balkans
Balkans
The Professionals
The Professionals
And more
Counter-Strike Spray Patterns
Your muscle memory still works
Every gun now sprays the way it does in Counter-Strike. The recoil control you've spent years drilling carries straight over, so there's nothing to relearn.
Pull down on the AK, tap the Deagle and burst the M4 exactly like you always have. If you can control it in CS, you can control it here.
Buy Menu Improvements
Refunding
Bought the wrong thing? You can now refund it, as long as you haven't fired it and the round hasn't reset.
The buy menu listing teammates' dropped weapons beneath the regular loadout
Pickup Available
The buy menu now shows weapons your teammates have dropped, and you can grab them instantly from there.
Garry's Mod
New Feature
Halloween Operation Missions

Season 8 of Operation Event Horizon brings 14 new Halloween missions, including missions for Zombie Survival and Rush.

Added
Halloween 2026 Terminal

A new Up-Link Terminal with 17 Halloween-themed skins made by Lambda Networks, plus a rare chance at gloves.

New Feature
Agents

Collect agents from the Shattered Web, Broken Fang and Riptide collections. You can equip one CT agent and one T agent at a time and inspect them from your inventory.

Added
"Pick an Agent" in the Operation Store

Choose any agent from the three agent collections in the rarity tier you want.

Added
Starjunk 95 | Industrial Sunset Memories Music Kit

A new music kit is available in the store.

New Feature
Pearlescent Finishes

Some skins now shift colour as you change your view angle. The USP-S | Printstream is the first skin to use it.

New Feature
Skins on World Models

Weapon skins now show on the weapons other players are holding, not only on your own first-person view.

Improvement
Trade-Up Contracts

You can now trade up 5 Covert skins for a knife or gloves, and trade up StatTrak skins for StatTrak results. The contract screen shows how many items you still need and only lists items you can use.

Improvement
StatTrak Swap Tool

The tool has been redesigned. It now swaps the kill counts between two weapons of the same type and lets you preview the result before you accept. It also no longer kills you when you use it.

Improvement
Name Tags

The new name tag screen shows a live 3D preview of your weapon as you type. Name tags and StatTrak counters on your weapon have also been rebuilt to be more reliable.

Improvement
Crosshair

Crosshairs now behave much more like CS:GO. Default styles use the original CS:GO crosshair artwork, the Follow Recoil and Weapon Gap options now work, and sniper rifles no longer show a crosshair. Your existing settings and share codes still work.

Improvement
Interface Font

The main interface font and the headline font have been updated.

Fixed
M9 Bayonet Name Tag Size

Name tags on the M9 Bayonet are now the correct size.

Removed
Arabesque Collection from the Operation Store

"Pick an Agent" replaces it in the Event Horizon store.

Improvement
StatTrak Modules

StatTrak modules are now more reliable. Instead of being an entity, they now exist as exclusve Clientside models that are spawned/removed as required.

Added
New Gamemode: Zombie Survival

Now available on LambdaNet

Added
New Gamemode: Rush

Based on the new CS2 mode, Rush is now available on LambdaNet

Deathrun
New Feature
Death Taunts

Deaths now have a voice line wheel instead of the radio, with Yes, No, Follow Me, Hold Position, Thanks, Cheer and Taunt. Lines are spoken out loud, so nearby Runners hear them too. Deaths also speak on their own at round start and when they set off a trap.

New Feature
Trap Labels

A floating label now sits above every trap button for Deaths. It shows whether the trap is free, who has claimed it, or who set it off and how long ago.

Improvement
Trap Claiming

Press Use to claim a trap, then Use again to activate it. Press Reload to give up your claim. You lose a claim automatically if you walk away, die, or the trap fires. Rotating and wheel-style buttons now work too, and the prompts show your actual key bindings.

New Feature
Trap Kill Credit

Where possible, the Death who set off a trap now gets the kill in the kill feed. Trap kills show a trap icon instead of a weapon icon.

Improvement
Movement

Deathrun now uses classic GMod movement instead of CS movement. Hold jump to bunnyhop, with no speed cap and much stronger air strafing. Death sprint now works properly.

Improvement
Deaths No Longer Take Fall Damage
Improvement
Fairer Death Selection

Players who have been a Death the fewest times on the current map are picked first.

New Feature
Death Avoidance Penalty

If you disconnect, switch to spectator or go AFK while you're a Death, you'll be made a Death again next round, even if you reconnect. Deaths can no longer use kill, and nobody can kill themselves during freeze time.

New Feature
AFK Detection

Players who are idle for 60 seconds during a round are moved to spectator, with a warning 15 seconds before. If you're the last player alive on your team, you're slayed instead so the round can end.

New Feature
!stuck Command

Type !stuck to be moved out of map geometry. It won't work right after you take damage, so it can't be used to escape a trap.

New Feature
No Ghosting

During a round, living players can no longer hear dead players or spectators by voice or chat. Everyone can talk again when the round ends.

New Feature
Spectating Locked to Your Team

During a live round, dead players can only spectate their own team.

New Feature
Spectator Key Display

While spectating, you can see which movement keys the player is pressing (WASD, Jump, Duck).

New Feature
Teammate Fading

Teammates who stand close to you fade out so they don't block your view.

New Feature
Finish Times & Personal Bests

When a Runner reaches the end, chat announces their finishing place and time. New personal bests and server records are announced too, and your personal best and rank now show under your run timer.

Fixed
Maps Killing Players During Warmup

Maps that break open the spawn room or kill players on a timer no longer do it during warmup.

Improvement
New Player Models

Deaths are now random Darryl agent models, and Runners wear Danger Zone jumpsuits.

Improvement
Team Icons

Deaths and Runners now have their own scythe and running-figure icons on the HUD.

Added
Radar

The radar now shows on the HUD again.

Fixed
Speed HUD

The speed HUD's background pattern no longer spills outside its box.

Website
Added
Halloween 2026 Terminal Content
Added
Starjunk 95 Music Kit assets
Added
Agent images and assets
New Feature
Blog

The website now has a blog with categories. You can find it under the Community menu and in the footer.

New Feature
Seasonal Theme

The website now changes with the seasons. During October it gets a Halloween logo, Halloween page banners and animated decorations. Profile covers, maps, events and other content images are never replaced.

Added
Seasonal Effects Setting

The animated seasonal decorations can be turned off in Account Settings. The seasonal theme itself stays on.

Added
Unread Forum Indicator

A small dot now appears on Forums in the main navigation when there are topics you haven't read.

Improvement
Link Previews

Links to forums and topics now show a generated preview card with the topic title, author, reply count and an excerpt of the opening post. Blog posts also get full previews when shared.

Improvement
Search Engine Visibility

The website now has a sitemap and better page metadata, so it can be found more easily in search results.

Counter-Strike Gamemode
New Feature
CS:GO Agents

Player models have been replaced with more than 140 CS:GO agent models. Agents equipped from the store are used in-game.

New Feature
Factions

Each team now plays as a faction. CT factions are FBI, GIGN, GSG-9, IDF, SAS, SEAL Team 6 and SWAT. T factions are Anarchists, Balkan, Elite Crew, Phoenix, Pirates, Professionals and Separatists. Maps pick a matching pair: for example, Dust II is IDF vs Elite Crew and Cruise is SWAT vs Pirates.

New Feature
Agent Voice Lines

Every faction now has its own radio voice lines. Many named agents, such as Special Agent Ava, have their own unique voice.

New Feature
Buy Menu Refunds

You can now refund items you bought, as long as you're still in the buy zone and the buy period hasn't ended. Weapons have to be unfired, grenades unthrown, and armor undamaged. Refunds are no longer available once you respawn

New Feature
Dropped Weapons in the Buy Menu

A new panel in the buy menu lists weapons lying on the ground in your buy zone. Click one to pick it up.

Added
Teammate Ownership Indicators
New Feature
Generated Recoil

All 34 firearms now use CS:GO-style recoil patterns, including recovery and camera kick. Scoped weapons and iron sights follow the recoil too.

Improvement
Flashbangs

Flashbangs have been rebuilt to match CS:GO. They now have a frozen afterimage, a proper fade-out and ear ringing. How long you're blinded depends on distance and on where you're looking. Spectators see the flash as well. Enemy names and crosshair target colours are hidden while you're blinded.

Improvement
Molotovs and Incendiary Grenades

Fire now spreads across the ground in separate patches. Walls and doors block it, and it lasts 7 seconds. Damage builds up to 40 per second. Smoke grenades can put out the whole fire or just part of it, and a smoke thrown into fire pops straight away.

Improvement
Grenade Physics

Grenade bounces are now more consistent and closer to CS:GO. Grenades also break glass on impact and carry on through it.

Improvement
Bullet Penetration

Wallbangs now work like CS:GO's. Damage depends on the material and how thick the wall is. Wood, glass and grates are easier to shoot through, and bullets can pass through several enemies. When friendly fire is off, teammates block bullets.

Improvement
Player Movement

Movement now follows CS:GO rules. Jumping and landing cost stamina, spamming crouch wears you out, and walking and crouching speeds are CS-accurate. Bunny hopping is limited by default.

Improvement
Crosshair

The crosshair now reacts to each weapon's spread and recoil, and changes colour when you're aiming at an enemy or a teammate.

Fixed
Aiming Down Sights

Iron sights and zoom now move in and out smoothly. They pick up where they left off if interrupted, and come back properly after a reload.

Improvement
Silencer Switching

Attaching or removing a silencer now stays in sync with the animation. Holstering mid-switch cancels it.

Added
Bomb Warning Callout

When no CT can defuse the bomb in time anymore, the nearest CT automatically radios that the bomb is about to explode.

Added
Added lambda_minimap_volume

Map creators can now implement lambda_minimap_volume brushes in their maps to provide a single minimap image for arenas. This is utilised in the new Rush gamemode.

Added
Map Faction Entity

Mappers can set each team's faction with the new info_map_team_factions entity.

Fixed
Scoped Movement Speed

Movement speed while scoped is now correct for the AUG (150), SCAR-20 (120) and G3SG1 (120).

Fixed
Zeus Charge Display

The charge bar on the Zeus display is now drawn at the correct size and position.