Here I go:
First is the updated Titan.
"Titan" Main Battle Walker. Cost: 1600$.
The Titan hasn't got much new since the last update: Only a new weapon and new texture. So, there isn't much to tell about this one.
So here is the "Atlas" Assault Titan.
"Atlas" Assault Walker. Cost: 1800$.
In a Nutshell, the Atlas is a Titan with a quad set of 30mm Armor Piercing Vulcan cannons. However, the Atlas also has Nano Active armor, which repairs itself automatically, making the Atlas an opponent to fear. However, the Atlas also carries advanced Sensor equippement, that alows it to detect stealth units in it's inmediate surrounding.
That's it for now.