Control Units have emerged as a game-changing legendary crystal material in Once Human.
These rare components hold the secrets of Rosetta’s energy field technology and provide significant advantages to players who can acquire and utilize them effectively.
Where To Find Control Unit In Once Human?
To discover the most reliable Control Unit locations, find them placed in Rosetta bases, which are scattered throughout the game map. Players would find it mainly in:
- Storgae Ceates
- Weapon Crates
- Various other crate types within Rosetta facilities
Based on field testing at White Cliff, approximately 22% of crates contain Control Units, with each successful find yielding between 2-6 units.
A few players state they have discovered such materials in non-Rosetta parts, but confirmed sightings are limited to Rosetta territory.
Upgrading Ammunition Using Control Units
Control Units enable ammunition upgrades, especially for Tungsten AP (Armor Penetration) rounds.

When made from these legendary crystals, ammunition receives fantastic benefits:
- An additional 25% damage bonus against humanoids
- 30% enhanced shield damage against humanoid targets
- Higher effectiveness for damage against humanoid super anomalies
These enhancements make Control Unit-modified ammunition the preferred choice when facing human opponents or special humanoid threats.
Crafting Tactical Item
The Large Synthesis Bench allows players to integrate Control Units into a few other tactical items, giving those tactical items an enormously potent effect.

The Advanced Explosive Throwables node in the Memetic Tree provides the main node with further expansion of crafting options.
Epic Items Enhanced By Control Units
- High-Explosive Grenades
- High Explosives (C4)
- Deadly Molotov Cocktails
- High-Explosive Shrapnel Grenade
- Thermite Grenade
- Enhanced Frost Grenade
Rare Items Enhanced By Control Units
- Improved Explosives
- Improved Molotov Cocktails
- Improved Shrapnel Grenades
- Improved Frost Grenades
The more Control Units are introduced into crafting such items, the greater the damage.
Control Unit-enhanced tactical equipment is particularly effective against humanoid Warriors, making them invaluable for specialized combat scenarios.
Farming Strategy
One of the most appropriate ways for players to farm Control Units effectively is by facilitating systematic raiding of Rosetta bases.
Most facilities often have several crates; an average of those bases contains at least two crates with these strategic materials.
Thus, the players should prepare themselves to run this a few times within a day, as the chances of dropping them are low to hoard.
Although Critical Pulse weapons differ little from Control Units, their tactical ability to exploit the advantages provided by explosives and special ammunition makes them legendary crystals worth collecting.