Atlas Nash's Combat Armor

“This armor doesn’t make you a hero, not by a long shot. It just keeps you alive long enough to decide what kind of one you want to be.”
– Field Marshal Commander Atlas Nash, 53rd Expeditionary Marines - United Arcadian Republic

You have a +1 bonus to AC while wearing this armor.

This Armor is known as "The Field Marshal's Aegis", this battle-scarred suit of reinforced composite plating with internal mechanical braces, smoke-scored shoulder pauldrons, and a sleek Arcadian tactical HUD (Head-Up Display). Embossed with the insignia of the 53rd Expeditionary Marines emblem, this suit has been field-tested in the worst hellscapes of the war and rebuilt more than once. Atlas Nash's Combat Armor was a standard-issue prototype for the 53rd Expeditionary Marines during the final phases of the "Great Melethian War". This model is one of the very few that survived the war intact. 

Battlefield Systems Interface
As a bonus action once per turn, you can activate the HUD interface, gaining advantage on one attack roll, skill check, or saving throw related to a creature you can see within 60 feet. You can do this a number of times equal to your proficiency bonus, regaining all uses after a long rest. 

Reactive Plating
You can expend one charge from the Armor, when you are hit by a weapon or spell attack, you can reduce the damage by 2d10 + your Constitution modifier as the armor deploys ablative plating or magical shielding, regaining all 5 Charges after a long rest. 

Command Sync Node
Once per short rest, you can issue Tactical Commands (from the Battle Commander subclass) to two targets instead of one when you use the feature. 

Last Stand Protocol 
When you are reduced to 0 hit points, the armor automatically injects a surge of stimulants. You immediately regain 30 hit points, stand up (without spending movement), and gain resistance to all damage until the start of your next turn.  You may only use this feature once per each long rest. 

This armor consists of a fitted metal chest piece worn with supple leather. Although it leaves the legs and arms relatively unprotected, this armor provides good protection for the wearer's vital organs while leaving the wearer relatively unencumbered.

Notes: Bonus: Armor Class, Fighter, Combat, Warding