You was a Adeptus Mechanicus in one of infantry divisions of imperium of mankind. For already a few months you was on this strange planet. A few times your camp were attacked by green skins, but most of things are going really calm. One day Captain is calling for you. As you enter his office he gives you unamused look.

Captain Dornan: "Good day. I will be straight... What the f#ck did you done?!"