Tactical Marine

Vigilance
"Like clay I shall mould them and in the furnace
of war I shall forge them. In great armour I shall clad
them and with the mightiest weapons shall they be
armed. They will be untouched by plague or disease;
no sickness shall blight them.
They are my bulwark against the Terror. They are the Defenders of Humanity. They are my Space Marines
...and they shall know no fear."
-The Emperor of Mankind