Titanic Fortress When a Titan in a Fortis Battle maniple is in base contact with another Titan in the maniple, and neither Titan moved in the Movement phase, the Titan ignores Armour roll modifiers resulting from Structural Damage or being attacked in the flank or rear (see page 34 of the Adeptus Titanicus rulebook). In addition, Titans in a Fortis Battle maniple may merge their void shields (see page 45 of te Adeptus Titanicus rulebook)