Who Needs Fire? Trophy / Achievement of the recently released Resident Evil Revelations 2 will give you one Bronze trophy or 20 Gamerscore points depending upon your console. To get this Trophy / Achievement all you have to do is, run from the detention center in Claire's Episode One and do not use the flame-thrower bust.
When you find the golden cog in the Claire's Campaign in Episode 1, use it to open a door to get into the prison cells of the detention center. You will be facing a horde of enemies here.
You should not use the flamethrower located on the right side of the room in order to get this Trophy / Achievement, instead use the explosive bottles on a large number of enemies as well as shotguns.
As soon as Moira opens the door, leave the place as more and more enemies will keep on coming till you escape. Watch the following video on how to get Resident Evil Revelations 2 Who Needs Fire? trophy / achievement.