Objective: Combine two vehicles
Head over to the steamroller and SUV to combine them into the Turret Rig. This beast basically an SUV covered in plating with a turret on top. The turret is useful for clearing zombies from your path to prevent you losing momentum from hitting them. Before going to the next objective however you may want to stock up on your most powerful weapons (either strong melee weapons with a large swing arc or explosive ranged weaponry) and a health item or two. This short chapter throws you into a boss fight rather quickly and if you are not prepared he will rip you apart.
Objective: Get to the quarantine station
To get there easily take the west exit out of Ingleton and get on the highway. Follow it all the way along to reach the quarantine station. Remember to use your turret rig's turret (RB or X) and side blades (Y) to keep the undead off your ride.
Objective: Defeat bikers (10)
Even with good weapons and health items these guys can be a real pain. They move fast, run you down and as you take them down more engage you at once until the tenth one is defeated. Use explosive ranged weapons or strong wide arc melee weapons (paddlesaw or spiked bat for example). The game recommends using Molotov cocktails on the bikers but I tended to find that too much miss over hit but you may have better luck if you decide to try it. There are health items scattered around the perimeter of the area but you may want to save some of them for the gang boss. Another effective tactic is to get in the cars around the area and crash into the bikers, killing them instantly. The gang leader appears after the tenth biker is downed.
Objective: Defeat the gang leader
Well, things just went from bad to worse. The boss's attacks are fast and mostly hit an area.
Attacks:
Roller charge – The boss will rev his Rollerhawg (during which flames will gush out the front) then floor it towards you, if you put the central mound between the boss and Nick, the boss will ramp over it through the smoke. This leaves you very little reaction time and is not a good idea. Try to keep a clear line of sight on the boss when he is far away so you can time your dodge (LS) to avoid the attack.
Ring of fire – After a Roller charge or when he is close to Nick and has just taken damage the boss will spin his Rollerhawg around rapidly (do a burnout) with flames spewing out in all directions. Dodge roll out of range if you can or just avoid the area if you are far enough away.
Molotov – Occasionally the boss will throw a molotov just like the regular bikers. Roll out of the way and avoid the patch of ground as the fire will burn for a short time after it hits the ground.
General strategy: Use the same tactics as you did against the regular bikers. The main differences being there is only one enemy so it is easier to time dodges and the enemy has far more heath. Use your strong melee weapons and / or explosive ranged weapons on him after he charges and dodge roll away from his attacks at all other times. There are molotovs scattered around for anyone who forgot to get heavy weapons, After a while the gang leader's health will eventually run out and you can deliver the coup de grace.
Chapter reward: Attribute points + Schematic (Rollerhawg)
