During my first battle of my first play of Long War I threw a granade to a Sectoid. After exploding, it granted me automatically these three achievements: Bada Boom (Kill 50 aliens with Explosive Weapons) Welcoming Commitee (Kill 150 Aliens) Pale Horse (Kill 500 aliens) I have only played XCOM before with a cracked non-Steam version of the game. For Long War I uninstalled the old XCOM and installed fresh a legitimate Steam version of the Game... It's odd that I got those achevements... Any ideas? Thanks.