I've redone the old Guardian Skillset as a perkdeck. I've brought some of the main features from the old skillset to this perkdeck.
Bullet Reuse - 5% chance to not use ammo while shooting
Armor Training - After 5 seconds of standing still, you gain 7.5% more armor and gain a 20% movement speed boost upon moving again
Bullet Catching - Additional 5% chance to not use ammo while shooting
Concentration - After 5 seconds of standing still, damage is increased by 10%
Critical Acclaim - For every 5 seconds of standing still, critical chance is increased by 1%. Also doubles all other effects of this perk deck.