Guardian

Guardian
Guardian is the Carapace Sentinel and possesses a shield on its back that absorbs all non-melee damage.

Armed with dual Plasma Accelerators, Guardian is a tough mid-range rig that is difficult to surprise from the rear. His back-mounted shield means he plays well in modes like Team Takedown and Power Slam where the enemy is free to spawn at any location and his twin Plasma Accelerators are great for keeping faster rigs pinned behind cover.

See Below for the other Sentinel Variants.
SN1000 - The test variant equipped with twin HMGs.

Blood Bank - The Vampire variant featuring a Beam and Railgun.

El Diablo - The Engineer variant equipped with Smart Missiles and an Impulse Cannon.

Bullseye - The Thief variant armed with a Warhead Launcher and an HMG.

Rough Justice - The Knockout variant with the Impulse Launcher and Impulse Cannon pattern weapons.

Critical Mass - The Nuke variant featuring a Warhead Launcher and an HMG.