After Su Yu landed the battle armor, he didn't enter the city immediately. Instead, he went to the city gate to observe the incoming and outgoing troops.
The equipment on those troops and the vehicles they rode were all high-tech weaponry, quite advanced indeed.
Especially their stealth system, the most formidable of all.
If it weren't for the flaw in the air, even Su Yu would find it difficult to detect their whereabouts.
This stealth system isn't just optical invisibility.
It even has stealth effects in various aspects like electromagnetic, infrared, spiritual energy, and data, while also concealing air fluctuations.
The stealth effect is so powerful that it's almost like the one on the Brutal Battle Armor.
However, Su Yu's Brutal Battle Armor was successfully developed using the powerful Ghost Energy of the Brutal Core, along with advanced materials obtained from the Transcendent Union, making it unique and hard to replicate.
