An Imperial Fists Tactical Squad approaches even the most straightforward firefight with the same mentality Dorn brought to fortress design, treating every position as ground to be held rather than merely occupied. Sergeants drill their legionaries in interlocking fields of fire and mutual support until a squad's defensive posture becomes almost impossible to unravel, a discipline that other Legions occasionally mistook for a lack of ambition until they found themselves unable to dislodge a VII Legion line no matter the cost committed against it.
This defensive character never made the Legion passive; an Imperial Fists Tactical Squad understood that the surest way to break an assault was often to let it exhaust itself against a position it could not crack, then counter-strike the moment the enemy's momentum faltered. That patience, married to an unglamorous willingness to absorb punishment other Legions would consider unacceptable, made VII Legion Tactical Squads a nightmare for any attacker hoping for a quick, decisive victory.