Chuck Greene finds an insane CURE activist named Brandon Whittaker getting ready to feed Vikki Taylor to a zombie. He instantly recognizes Chuck and tells him that he is 'fighting the oppression' the same way Chuck was accused of doing.
Brandon opens a stall and lets out a zombie to try to eat his Vikki Taylor. After Chuck shoves the zombie back into the stall to save the hostage, Brandon accuses him of 'losing the courage to finish what you started'. He then picks up a Glass Shard and tries to kill Chuck.
After Brandon is beaten, he stumbles into the stall the zombie was in and gets bitten on the face. Realizing he is just been infected, Brandon commits suicide by slitting his own throat.
Brandon: The movement is growing...soon, we'll all be part of the change.
Chuck: Hey buddy, you ok?
Brandon: Chuck Greene! Wow. Thank you for showing me the way. Now my life has meaning again... At first I didn't understand what the two of you were up to...
Chuck: What are you talking about?
Brandon: Letting the zombies free...
Chuck: CURE didn't have anything to do with that, and neither did I.
Brandon: First it was horrible, the zombies, the zombies we've been trying to save. Killing people, eating people... But then I saw how brilliant the plan is... it's the best way to end the oppression. It' s so radical... it's beautiful, man.
Vikki: Please... help me.
Brandon: So I'm helping now. I'm a soldier for the cause, man. Releases a zombie from a stall
Chuck: No! This is not the way to help anyone!
Brandon: Oh, I see. You're losing the courage to finish what you started! Well, I have the guts, and I'm taking this thing all the way!!
Brandon can be a surprisingly difficult foe for the ill-prepared player. This fight is likely to be one of the first boss fights Chuck has, and can be extremely difficult as a low level character. It is highly recommended Chuck has at least one piece of food, such as Wine, and a gun.
Brandon is fast and his attacks are brutal. Trying to follow him as he jumps through the stalls can be disorienting. It is recommended to stay near the bathroom entrance, clear of the stalls, eliminating his two major advantages: His sneak attacks, and being surprised by his speed. With the distance, Chuck should be able to adjust to his oncoming attacks much easier.
If Brandon starts going into hiding and trying his sneak attacks, stand at the stall nearest to the entrance of the men's bathroom. After a while, Brandon will jump out of the second stall from Chuck and onto a huge bloodstain, where he will be partially dazed and vulnerable. Run up to Brandon and hit him with an alternate attack, with a weapon such as the Spiked Bat or Knife Gloves. After that, back off quickly.
Stand near the entrance away from the stalls, and wait for him to charge Chuck. Run away as he charges. When he gets close enough he will attempt a jumping stab. If Chuck is running away from him while he does this he will miss and hunch over, gasping for breath. Hit him twice then back off, after Chuck hits him he will slash around then jump into the stalls.
Do not take Survivors when fighting Brandon. If this cannot be avoided, make the survivors wait in the woman's bathroom during the battle. Brandon can and often will target them, and can very easily kill them. Survivors will help Chuck attack Brandon.
There's a glitch with Brandon's AI that allows Chuck to kill him VERY quickly, Chuck will need a fast melee weapon, such as the knife gloves or an electric guitar. After he preforms his jump attack, hit him twice with the weapon. Now jump away, he should perform a spinning attack, run up and hit him ONCE then jump away again, he should perform the same spinning attack, and he will repeat this, as long as Chuck runs up and hit him every time he spins. Until he dies or Chuck gets hit, this tactic can kill him very quickly.
If Chuck has a melee weapon keep distance, when Brandon gets close enough he will do a jump attack. Jump out of his way and he will then be tired and open to attack. Repeat this step and he will be easily defeated.
Another tactic is to get a Chainsaw. When Brandon jumps into the stalls stand to the SIDE of the cubicle. When he jumps out attack him and he will then jump back into the cubicle, repeat until he is beaten.
Using a ranged weapon will cause Brandon to go berserk and pounce on Chuck, followed with repeated stabs. This attack is dodgeable by jumping away when he leaps at Chuck, but will still likely damage Chuck at least once per leap.
Using a fire weapon on him will temporarily stun him. 
For players who are having trouble with this fight: Run out of the bathroom door and go right. Brandon will follow Chuck to a certain point and turn around and retreat into a stall. He will jump out once Chuck inches through the door, giving Chuck a chance to fire at him while backing out the door. Repeat this tactic until Brandon is dead. This technique is almost foolproof, as Brandon will always turn around at the same point in the hallway, allowing Chuck to pass his turnaround point and shoot him in the back as he returns. A Sniper Rifle is ideal, but any gun will work.
Drinking a Quick Step can help Chuck match Brandon's speed.
Brandon's health will not recharge in your absence, and Vikki will not take damage either. So Chuck can leave the bathroom to heal at the BBQ Shack.