While in the detachment selection screen, hold down the control key and
type Paladin. This enables you to use Knight Paladin units.
During the battle - Hold down the control key and type:
EYEOFTERROR : To be able to see all enemy units.
HERETIC : Completes the mission.
CLEANSINFIRE : Your hit probability is increased to 100%.
WHITEDWARF : Makes all your units invulnerable to ranged weapon fire, not
close combat.
P.S. Control makes the selected unit fire so try to select a unit that has
fired or it cannot fire.