Metro Mayhem a custom fireteam map.
Here is how it works.
leak in one of Lab 3 (Overdose)'s underground storage facility is rapidly infecting civilians in the city through the Metro System. Our scientists believe that the NEMEXIS Host is in the Metro System. An elite crack team has been sent in. Mission : Extermination
Rewards Hard) Bloody Camo, a blood drenched camo
(Extreme) 1 day NEMEXIS M16A3, a blue M16A3 used by the proud assault troops of the UAV, features a built-in S1 suppressor.
Longarm, Extremely nasty mutant the has 130 hp buts run VERY fast and has long arms.
Havocs, Flying Boss that has claws and 1000 HP, THKs you
Behemoth, The Host, having 3068 HP this OHKs you but strikes slowly and walks slowly, use this to your advantage
You start at a subway station, there are civilians screaming and running around, shooting a civilian will decrease your hp by 25 percent.
Colonel Coleman: Destroy the infected creatures in the station, do not harm civilians
You then board a subway train
Colonel Coleman: There is a breach in the train's control room, handle the situation!
You have to drive the train by pressing E, there is also a hole beside the control panel that the infected enter through.
Colonel Coleman: The situation is rather stable at the movement, hang on.
The train suddenly rams into a pile of corpses and explodes.
You wake up in the tunnel.
Colonel Coleman: We have detected that the Storage is right next to you, enter the buidling
A horde rushes out and you kill them
Colonel Coleman: The Host is here! Kill him and get the blood samples
You arrive at a balcony and there is furnace under you. There are 8 M107Qs mounted on it, on Extreme there are only M24s.
The Havoc flies out and you kill him
Cutscene: The havoc falls into the furnace and dies