Now that you’ve tracked down all three Empty Canisters in Shattered Veil, the next step in the journey toward unlocking the upgraded Ray Gun Mark II involves filling each canister with bo6 bot lobby service zombie essence. It’s not just about survival anymore – it's about precision, timing, and location. In this blog, we’ll walk you through the detailed process of activating and filling each canister.

Step 1: Placing the Empty Canisters

Once you've collected all three Empty Canisters from the Rear Patio, Mainframe Chamber, and blue crystal destruction, you need to place them in specific collection stations. These collection devices are easy to spot – they look like circular metal rigs with green tubes and electrical conduits feeding into them.

Locations to Place Canisters:

1. Rear Patio – Near the same window where the first canister was retrieved.

2. Security Overlook – By the broken railing across from the Pack-a-Punch machine.

3. Service Tunnel – Next to a small generator room behind the crashed vehicle.

Walk up to each collection rig and interact to place one canister at a time.

Step 2: Luring Zombies to the Rig

After placing each canister, it will emit a green glow and start emitting a faint humming sound – this means it’s ready to begin collection.

How It Works:

• Kills must occur within a short radius of the canister (around 10 feet).

• Only kills with standard weapons (no explosives or Wonder Weapons) will properly channel essence.

• Each canister needs roughly 12–15 zombie kills to fill completely.

Pro Tips:

• Train zombies before approaching the rig. Try gathering a full wave before starting the filling process.

• If playing co-op, assign a teammate to protect the rig from interference while you handle the zombie slaying.

• Using Dead Wire or Cryo Freeze ammo mods can help control the crowd without overkilling.

Step 3: When the Canister Is Full

Once a canister is filled:

• It will stop glowing green and emit a loud chime.

• A prompt will appear allowing you to collect the Filled Canister.

• Repeat this for all three stations.

Once you’ve retrieved all three Filled Canisters, your next destination is the Weapon Chamber in the Mainframe Sector.

Step 4: Unlocking the Ray Gun Mark II Variants

Return to the Mainframe and locate the locked Weapon Chamber door. Behind it lies the terminal where you’ll deposit the filled canisters. Interacting with this machine will trigger:

• A short defensive lockdown event, where waves of zombies spawn.

• Upon surviving the event, the machine will dispense the Ray Gun Mark II Variant – typically randomized between the following:

Ray Gun Mark II Variants:

1. Mark II-X (Precision)

   • Single-shot, high-damage, ideal for bosses.

2. Mark II-Z (Burst)

   • Three-round burst with lightning shock damage.

3. Mark II-V (Vortex)

   • Fires gravitational orbs that pull in enemies.

Final Thoughts

The Ray Gun Mark II is a staple of the Zombies legacy – and Shattered Veil gives players one of the most satisfying versions yet. Filling the canisters adds a unique layer of tactical zombie slaying that rewards patience and strategic movement.

If you’re going for the Easter Egg main quest, this step is essential. With the Ray Gun Mark II in hand, you’ll be better equipped for the Crystal Obelisk Defense, Spectral Keeper trials, and the bo6 bot lobby final boss fight.