XCOM 2 achievements

26.86%

Pile 'Em Up

Kill 500 aliens. (does not have to be in same game)

29.19%

Mechlord

Hack a Sectopod

29.76%

Meat Over Metal

Kill a Sectopod on the same turn you encounter it (in Single Player)

38.09%

Have a Nice Trip

Cause an enemy to fall to its death

38.17%

Car Wrecked

Cause an enemy to die in a vehicle explosion

40.29%

Now Am I Become Death

Kill 3 enemies in a single turn, with a single soldier, without explosives

40.71%

Bring It Down

Sabotage an alien facility

43.06%

Cyberlord

Earn a second tier hack reward

45.34%

Heroes of the Resistance

Beat a Retaliation mission with 3 or less civilian deaths

46.36%

Harder, Better, Faster, Stronger

Apply a PCS upgrade to a soldier

46.52%

Room to Grow

Upgrade a facility

51.39%

Tinker

Build an experimental item in the Proving Grounds