Xcom Enemy Unknown -

: Recover weapon fragments, alien alloys, and elerium from mission sites.

Once a technology is researched, it becomes available for production in the department. XCOM Enemy Unknown

Before you can build anything, your scientists must understand the technology. : Recover weapon fragments, alien alloys, and elerium

: Capturing live aliens with an Arc Thrower and interrogating them provides "Research Credits," which significantly speed up related technology paths. 2. Engineering and Manufacturing : Recover weapon fragments