The Nightmare squad

In the year 2125 the first mechs made their debut and
established that they where much more powerful and faster than anything before.
They had a major flaw though they we’re running on a battery rather than an
unlimited power source.

Thirty years later it is 2155 and two new types of mechs
came on scene the MK 2 and the MK 3 each of them required mental compactly to pilot and Mk 2 is much more common than Mk 3’s. Mk3's run on a generator and have a near indefinite operation time.

Ten years later in 2165 World Governments begin to collapse
from debt and growing populations so then corporate powers rose to the
challenge of governing the world. They end up deciding they must populate other planets.

One hundred years later in 2265 Mars has been colonized
using Eco domes to have a livable environment. Also Mechs haven’t been able to continue in upgrading the main body design due to no one being able to pilot Mk4 prototypes.

Twenty-five years later in 2290 war breaks out between the corporations. Weapons Tech surges forward ending up creating a new class of weapons call forbidden weapons. These weapons that have the ability to wipe out cities in a moment and some are able to turn an area the size of Texas into a wasteland.