Mastering the UI and controls is paramount for effective command. In tactical combat, you'll primarily use the mouse for movement and ability selection, with keyboard shortcuts for quick actions. On the Geoscape, the UI provides vital information on ADVENT's progress, available missions, and your resources. Pay attention to the top bar for critical alerts and resource counts.

Essential Controls:
- Left Click: Select unit, move, target ability.
- Right Click: Cancel action, rotate camera.
- WASD/Arrow Keys: Camera movement.
- Q/E: Rotate camera.
- Tab: Cycle through units.
- F1: Unit info.
- Spacebar: End turn.