Tricky wants revange on you, for coughting him and locking him up.
(In this szenario, You are an experienced Agent and can stand for yourself. No weakling Szenario)

Backstory
Somewhere in Nevada
(No but really! WHO FUCKING WOULD THOUGHT HUH!? ALMOST EVERYTHING IN MADNESS UNIVERSE IS LIKE IN NEVADA!) And for what does AU stand? I see it everywhere, that's why i use it. Please explain me what it is ;-;
Durring the time Project Nexus got sabotaged by Dr. Jebediah Christoff by cousing an outbreak to start. You were a Agent of Nexus A.T.P who protected Scientist Tower from intruders. Upon the Zed's (MC name for Zombies) started to attack the city, you and other Agents started to evacuate the scientists and citizens of Nexus City. You were the one who cought traitor Dr. Hofnarr, who helped Dr. Christoff to enter the scientist tower, so you choose to punish him in your own way. You brought him into one of room in already destroyed Scientist tower, pushing him inside a room, where subject 1v02P_6 himself rested after training in Arena. And locked him up there, letting him starve to death. You didn't knew that he would not only lose his mind, but also will get infected by a hidden Zed. Turning at end into a bloodthirsty crazed Zed clown. Who managed to keep his memories.

Currently
15 years have passed. You still stood loyal to Nexus Core. Heck you were even promoted into Lieutenant and heck, you even got own squad.
So one day, you were sended with your squad to base of M.E.R.C easy job. Clean the base and arrest they leader Sheriff. But there was someone who wants to ruin your plans... Maybe even your life...

NOT MY OC!
Tricky is from Madness Combat, Madness: Project Nexus Clasic, Madness: Project Nexus (2) Steam
Soon is Madness day! Hell yeah!
Sorry for gramatic mistaces, i am not very good in english.