In WR, not every piece of armament is a damage-dealing weapon. Currently there are two pieces of equipment used to protect your robot from incoming fire, the Écu and the Ancile. There is also the built in underpowered Anciles exclusive to the Carnage and Haechi, the buffed-up Ancile belonging to the Fūjin, and the Raijin and the Rhino's built-in Écu-resembling shields used in Assault mode and Bastion mode. The Gareth and the Galahad have built-in shields that can be mounted on the left or switched to the front, slowing robots down but allowing to fire while being covered. The Lancelot has a 3-piece built in frontal shield, and the Bulgasari has a side-mounted shield. All shields have a hitpoint value that once depleted will destroy the shield whether as an armament piece or built into a robot.
Note: The Ember, released in update 3.2, is the only weapon that can bypass both shields simultaneously.
The Ecu Shield is a physical shield mounted on a light armament hard-point on a robot or in certain robots a medium hard-point. It protects the robot from every type of damage except from "splash damage" from Rocket.
The Ancile Shield is an energy shield that surrounds the robot in a 360º sphere. The Ancile protects the robot from all damage types except energy based weapons. The Ancile is a heavy hard-point armament so it can only be mounted on certain robots with a heavy armament slot. Unlike the Ecu shield, the Ancile can regenerate over time with a rate of 3% of HP per second and reactivate when it has 20% health remaining. If an enemy bot manages to close in to less than 30m of a bot with an Ancile, his/her shots would pass through and hit the robot no matter what type of weapon it is.