The TV Tropes entry on Chimera Squad is a surprisingly useful resource for game mechanics and information. It is actually more complete than the XCOM Wiki, at the moment. : r/Xcom
XCOM 2 XCOM: Enemy Within UFO: Enemy Unknown Xenonauts X-COM: Apocalypse, others, video Game, human, fictional Character png | PNGWing
XCOM: Enemy Unknown Brings Strategy Back to Series | WIRED