How do you defeat gorge romero in call of the dead?

thats no small task, but it can be done, you will need a full game with 2 PAP weapon for each person kill all zombies on the round and leave a few crawlers and get gorge in the water and hit him with all you got, i think he's light is he weakness and he's HP, you know you are geting close to killing him when he's light gos red and starts to blink then finish him off this sshould work, i havent done it my self but have seen people do it.