Even in the Pre-Game tips it says nothing about Activating Armor mode to take more bullet damage, only saying that activating it will allow you to survive explosions better.
In the 2nd Demo it was useful but in this game it just seems like a Gimmick.
In the 2nd Demo If one person in armor mode was faced with two people who are not using Armor mode The one person in armor mode has a very good chance of winning if its SCAR vs SCAR + SCAR.
This situation is misunderstood as being overpowered which is what people complained about.
But look at the facts here.
Everybody starts of with Power Armor and Stealth, Everybody has the same Nanosuit tools and those who use them to the full potential will usually succeed in battles. Although the Nanosuit powers have been misunderstood as overpowered by those who did not use them appropriately and have complained to the developers spreading a Biased opinion as Fact to the developers.
Thus action has been taken and the Experience has been dumbed down along with the Line seperating this game from the other more medicore FPS shooters has been ever more blurred.
The suit is what makes this game special, If the suit isn't special, then this game isn't as enjoyable nor unique.