Learn how to build facilities, manage research, and deploy satellites effectively in XCOM: Enemy Within. Optimize your base for late-game success and alien interception.
Walkthrough
- 1Upon entering the base menu, click the Engineering button and then 'Build Facilities'.
- 2Designate one side of your base for Satellite Uplinks. Build an Access Lift and start excavating.
- 3Aim for a 3-floor base, placing similar facilities together for bonuses. Build a Satellite Uplink next to your existing one and queue up 2-3 extra satellites.
- 4Build Power Generators on the side of the base not used for Satellite Uplinks. This area should also house the Officer Training School, Cybernetics Lab, or Gene Mod Labs.
- 5To start research, click 'Research' and select 'Start New Research Project'. Prioritize Weapon Fragments for better weapons.
- 6Researching Weapon Fragments unlocks Experimental Warfare and potentially plasma weapons if you capture UFO components.
- 7It's generally not recommended to research Xeno-biology early as plasma pistols are weak. Interrogation for tech credits is only worthwhile with the South America continent bonus.
- 8Wait until Mutons are common before capturing aliens for research. Capturing Muton Elites can provide advanced plasma weapons.
- 9Once facilities are built, soldiers recruited (sparingly), and research is set, click the globe and then 'Scan'. This will trigger various missions or events.
- 10For UFO Interception, basic interceptors with missiles are sufficient early on. Later, one interceptor with a laser cannon can handle most UFOs except battleships.
Tips
- Building similar facilities adjacent to each other provides bonuses.
- Satellite Uplinks are limited by power and available engineers.
- Don't demolish buildings unnecessarily.
- Focus on base expansion and satellites over soldier upgrades unless absolutely necessary.
- Sell captured UFO power sources and flight computers for cash early on.
- Researching weapons is generally more beneficial than increasing soldier HP due to the combat system.
- Capturing live aliens is more rewarding later in the game when stronger plasma weapons are available.
- Keep one or two basic interceptors on each continent for defense.
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