# Select a Specialty

Specialties are player-selected identities enabling focused skill development for managing, expanding, or exploring a specific part of the settlement. Achievements and permanent skill bonuses enhance competitiveness against those without comparable expertise.

### **How to Select and Change Your Specialty**

1. **Access the Specialty Selector:**

Navigate to the game interface and locate the "Change Specialty" button in the home page or profile page.

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2. **Select Your Specialty:**

Choose your desired specialty from the list. Each specialty offers unique benefits and progression paths. Some are easier to manage then others, which is basically a rank of the number of cards and resources needed to keep track of.

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3. **Activate the Specialty:**

Click "Activate" to set your selected specialty. Only the currently active specialty will gain progression.

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4. **Your new specialty is selected!**

You can now go to the main menu and see that your new speciality is selected. Your new production will be applied to ranking up your specialty.

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You can also see that the resource chain is filtered by resources related to your specialty in yellow on the left.

<figure><img src="https://4239662568-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FoP48S3Prvop0e9jwlZ7C%2Fuploads%2FTQ6Uv28rzqNCV9CKaIVo%2FScreenshot%202024-07-16%20at%209.16.02%E2%80%AFAM.png?alt=media&#x26;token=710822c9-b64d-4489-9763-c11ab63cf839" alt=""><figcaption></figcaption></figure>

5. **Switch Specialties Anytime:**

You can change your specialty whenever you want. Simply return to the Specialty menu and select a different specialty. All progress in your previous specialty is saved.

6. **Benefits from All Ranks:**

You receive benefits from all the ranks you've unlocked across different specialties, even if they are not currently active.

### **Ranking Up Your Specialty**

To rank up your specialty, you must meet specific production and efficiency requirements.

**Production Requirements**

* Each specialty has a production requirement that must be met to rank up.
* **Lifetime Totals:** The production requirement is a running total over the lifetime of the game. Production from liquidity staking is excluded.
* **Example:**
  * If a player with the Technician specialty has Solar Panel Arrays producing 10 power, Fission Reactors producing 15 power, and Ice Mining Rigs consuming 20 power, the total production is +25 power towards the Technician specialty, not just the net +5.

**Efficiency Requirements**

* Efficiency is determined by how well your items are producing resources.
* **Hourly Efficiency Counter:** If your efficiency drops below the required threshold for an hour, progress towards leveling up pauses until you meet the requirement again.
* **Efficiency Calculation:**
  * Efficiency is calculated as the average efficiency of the relevant item types.
  * **Example:**
    * Solar Panel Arrays: 100 Collection Strength (CS), with 70 CS active and 30 CS deactivated by a hazard, results in 70% efficiency.
    * Fission Reactors: 200 CS, with 180 CS active and 20 CS deactivated by a hazard, results in 90% efficiency.
    * Overall Efficiency for the hour: (70 + 90) / 2 = 80%.

By understanding and utilizing these steps, you can effectively manage your specialties in **Mission Control**, ensuring you maximize your production and efficiency on Mars.