The Federation is under attack and doesn't seem to be holding its ground very well. It is up to you and your Mechwarrior to put an end to their advancing armies.
Mankind has been traveling through a cloud. The sky has been dark ever since the war began. It's time for mankind to end the war before the war puts an end to mankind.
Shoot down every single bandit until the wanted criminal is drawn out. Assassinate the level bosses to proceed to the next level. You will have a wider arsenal of weapons as you progress and the bosses will get tougher.