Cepheus Protocol

Cepheus Protocol

50 ratings
Chelsey and You: How to avoid being virus chow
By [(@v@) HHWW] Smartyglasses
A guide explaining how to play both Pandemic and Horde mode, a basic explanation of gameplay mechanics, and more advanced tactics.

*This is my first guide. My mistake on the early publish.
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Guide Contents

Hold the line...

  1. Horde Quickplay Guide
  2. Pandemic Quickplay Guide
  3. Doctrines
  4. C.E.R.C units
  5. C.E.R.C vehicles
  6. C.E.R.C buildings
  7. Civilians
  8. Pangu Virus, Chelsey & Hives
  9. Infected
  10. Mutations
  11. Advanced Tactics
  12. Compound Layout
  13. Factions
Horde Quickplay Guide
In this mode you will fight endless waves of infected.
You will not need to call in a capture truck, build tents, or mobilize.
Just hold out as long as possible.


While you do control the zone, capture trucks are not available. As such you start with the max unit cap of 80, and several buildings "unlocked". That means no Ammo tents so I recommend Atlas's as your go to supply hubs. Plan on maxing out the unit cap during the early waves.

  1. Begin by using your Engineer to call in a CERC Center.
    This provides access to Engineers and Atlas.
  2. Build a generator, and call in a couple more Engineers.
    Power for the barracks, lights, and gates.
  3. Place a barracks, early perimeter fence, and spotlights.
    Try and keep all three Engineers busy. Splitting your fencing build among your engineers can greatly speed up its construction.
  4. Call Heavy units in to fill the perimeter fences.
    Do not forget to deploy them. Space them so their AoE slightly overlaps.
  5. Call in the Ammo&Gas Atlas.
    This unit will "run" ammo and gas to any nearby friendlies.
  6. Profit
    Run a scientist around to DNA drops in between waves.

Tips
  • Engineers should sit closest to your fences and turrets so that, when idle, they will repair things.
  • Assault units can place wire and sandbags outside the perimeter during wave downtime to slow down fast moving infected.
  • If you struggle with cash, aim to grab the 40% off Engineering Doctine perk. Problem solved.
  • Turn on unit and vehicle lights.
  • Mortars can be used to clear hives safe and effectively. Do not eliminate all of them however or strange things will happen. You were warned...
Pandemic Quickplay Guide
In this mode you play as, Aridian Winter, who takes command of a black-ops response team. You will need to establish a base of operations somewhere, attempt to limit the spread of an infection, and kill patient zero along with all those infected. This is a race against time.


Welcome to the open world/paradise island.
You need to start by selecting somewhere to deploy your small team of 3. I would stay away from noted infected zones, and complex urban areas. In an ideal spot, you will have a good portion of open land for your HQ along with clear lines of sight extending out for your gunmen.


Now the easy part.

You can make this "race" much, much less stressful if you use Slow Time, spacebar by default. It will let you plan out, and erase mistakes, without being overrun in the opening minutes. It can be intense and frustrating when it seems like you cannot even get your base down first. Use it.
  1. Repel or land the helicopter and dispatch your team.
  2. Using the "call-ins" on the far right sight, bring in a Supply Truck and deploy it. Once deployed the zone will be claimed albeit, somewhat limited to infection level.
  3. Grab your Engineer and have him build the CERC HQ, during which keep the Supply truck building the command, ammo, or hospital tent.
  4. When done bring in a few more engineers from the HQ, start having them build a generator, spotlights, and fences.
  5. With power online, bring the barracks in. Dont forget to keep that Supply Truck busy with tents, you should have them all placed about now.
  6. Once the barracks is done bring in the Heavy units, the bulk of your base defense. With their deployment ability, set up overlapping cones of machine gun coverage along your fences.
  7. Try and save 5 units in the unit cap for a squad, 4 assault and a radio, to run missions in the helicopter. The assault units need to have their default M16s replaced with SCARs, infantry need to be near the barracks to buy weapons.
  8. Seat the 4 assaults first, allowing them to take the "sides", and the radio last. You can now effectively attack somewhat safely and call in strikes. Airstrikes require a nearby radio unit, and one flying shotgun in a helo allows just that.

Doctrines
I am hesitant to write a more detailed breakdown and analysis of the doctrines as changes are coming. The separate doctrine trees are going to be combined in upcoming revisions to the game, which I expect will greatly improve the game. It may also greatly change when you get those skills and their strengths.


This doctrine features two units that may change how agressively you can tackle infected zones. An apc, that can be refit with a cannon, and an attack helicopter thats ready to go. You also can call an "AC-130" that auto targets hostiles, be warned, he will also frag friendlies not running fast enough.


The best doctrine overall. A few minor change along with the biggest game changers to be offered, a big fat cash discount and mortars. The discount is 2 points and will now take 40% off everything with a price tag, units and emplacements. The mortar when micro'd can reduce hives to ash, create a no-mans land, choke, or protect an away team. They are incredibly expensive but if the infestation is beyond reproach and you are shooting civies, this is how your team comes home.


The mobile infantry....they have semi-mobile turrets? And mini-guns... which are unfortunately not terribly fast either. This here is the biggest reason I was for a "grand unified doctrine", its a skip 90% of the time but has fun elements.
C.E.R.C units
Assault

Scientist

Radio

Medic

Heavy

Sniper

Spec Ops
C.E.R.C vehicles
C.E.R.C buildings
Spotlight
The spotlight consumes a small amount of power and provides LOS through the FoW.
These lights are critical to any static line. They allow units to clear infected BEFORE they reach compound defense structures.
The spotlight AoE cannot overlap with other lights.

Civilians
Pangu Virus, Chelsey & Hives
Infected
Mutations
Advanced Tactics
Assault unit weapons
The M16 has mediocre damage and ROF, greatly limiting this unit out of the gate. Upgrading to the SCAR rifle more than doubles this units fighting effectiveness.

Factions
Compound Layout
Bridges
It is important to understand that bridges can be demolished via airstrikes so keep a radio unit nearby. This is should be your fallback plan if a secondary base used as a choke becomes overwhelmed.

Firing Cone Gaps
Be mindful of any gaps between heavy deployments. They will not shoot anything outside of their AoE, no matter how close the enemy is.
13 Comments
Ruji 30 Mar, 2024 @ 7:20am 
thank you for the write up so far

please add more im slowly getting into the game you have been a great help!
Obiben27 22 Dec, 2023 @ 12:52pm 
@Charlie that would be a lieutenant for patient zero
Reinier dash 27 Jul, 2023 @ 1:13pm 
seems this person doesn't care to finish this nice
Charlie 24 Mar, 2023 @ 6:32pm 
I'm confused. I was going in to a zone to try and evac civs before patient zero wiped it, but as i was crossing a bridge some rambo looking mf holding an m60 with the health bar the size of patient zero gunned down my entire advancing group
catmanmlio 31 Dec, 2022 @ 3:10pm 
there's another island, it tends to NOT have any of the virus start there, setting up a massive base there or a backup base is not a bad idea
mattattackj1029 31 Oct, 2022 @ 8:44pm 
My strategy is to deploy to the small(ish) city that the police spawn at. I immediately fence/destroy the bridge, and clear out the outbreak. Once I do that, I set up a FOB at the mansion thing at the ocean, as well as wipe out the outbreak at the factory and destroy the bridge. The military barracks can be a good FOB, as long as you have a helicopter that can evac all of your units stationed there if patient zero comes. Then, you can fence off the main city, and get some radiomen on the roofs to spot for artillery/airstrikes. By then, you've basically won. All you have to do is research the ammo to destroy patient zero and that's it.
Elliott The Fox 6 Aug, 2022 @ 2:51pm 
i hope its still something you can do but when you use buttons to rotate the spotlights instead of the mouse you can overlap their light cones if you slow and queue them...its really nice to use
Littleman 30 Oct, 2021 @ 3:02pm 
What the hell are the worms called in the game? Are those the leviathans?
arkhamknight591 29 Oct, 2021 @ 10:05am 
Thank you for the guide, didn't know you could destroy bridges, hopefully its gonna make things a tad bit easier
Lorrdy 24 Oct, 2021 @ 12:22am 
Yeah the fun stopped as 2 worms attacked at once