This a reference App for the game XCOM Enemy Unknown and it can be used as a source of information or guide.
It contains skill trees (abilities) for all the XCOM Enemy Unknown classes， facility information， officer training and tips & tricks.
Skill trees for the following XCOM Enemy Unknown Classes： Assault， Heavy， Support and Sniper. It also includes all Psionic abilities.
Information about Aliens (stats， weapons， abilities， traits， tactics and more).
Example Multiplayer builds.
Officer Training School upgrade.
Tips and Tricks.