Particle Wall is a TitanTactical Ability that appears in Titanfall. It is a stationary force-field that blocks any fire from one side, allowing damage to be taken from the other side.
This ability creates a concave force field which blocks all projectiles from one side and lets all projectiles through from the other.
The force field exists for certain period of time and degrades from enemy damage. The remaining lifetime is indicated by the field's color. The shield has a maximum duration of 8 seconds, decreased by enemy fire.
Particle field does not block melee attacks, Electric Smoke or Cluster Missile explosions (however, the missile itself will explode upon impact).