I know there's an hd version out now, but I recorded this walkthrough on the ps2 waaay before the redux was announced.
Mission 1 Quartz Zone Massacre
STORYLINE:
A genetically engineered squad of super soldiers, designed to fight in the poisoned battlefields of the future, are betrayed by their superiors.
One soldier survives and carries the minds and expertise of his murdered squad mates, electronically embedded in his rifle, helmet, and backpack.
Together they are a one-man army, with a simple mission... revenge.