1. Black Mesa Achievements
  2. Gray Matter Propulsion achievement
Black Mesa

Black Mesa

1,077
50
4.42
Game action
Black Mesa
fredericoa7x

fredericoa7x

500
29
27 Oct 16
42h 52m
58%
fredericoa7x

Gray Matter Propulsion achievement in Black Mesa

Gray Matter Propulsion

Headshot 20 enemies with the .357 magnum.

Gray Matter Propulsion0
27 October 2016
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