"Biohazard" is a side mission in Infamous 2.

Synopsis

Cole speaks with a medic who informs him that “those ice men” had run off with some “extremely volatile chemicals,” adding his concern that “they’re going to hurt someone!”

Cole quickly chases down the Ice Soldiers who are fleeing through the Gas Works district. When Cole tracks them down and attacks them, the chemicals they have stolen explode when he defeats them.

Walkthrough

This side mission can be found in the Gas Works District of New Marais. You must hunt down down three Ice soldiers who have stolen volatile chemicals. Though there is no time limit for this mission, the player can fail the mission if the Ice Soldiers reach their destination (one of the Gas Works warehouses). The Lightning Tether should be used to approach them nearby and then attack using the Magnum Bolt, Bolt Stream, Artillery Bolt, Precision, or a blast power. Hitting them from behind will cause the packages to blow up, resulting in an easy kill, as long as you are not harmed from the explosion at close proximity.

Upon completion, Cole receives 100 XP and slightly reduces enemy activity in the Gas Works district of New Marais.

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