Saw
46 Achievements
1,000
8-10h
Fire Hazard
First kill with fire
10
How to unlock the Fire Hazard achievement in Saw - Definitive Guide
Also, it is possible, but not easy, to push him into the Molotov fire. If you miss your throw and the fire is burning on the ground, you can punch him into it to hopefully catch him on fire. I would use this as a last resort before reloading your check point, but it can work.
One you have the schematics for the explosive mine, go find yourself and worktable and make one. While running around in a mission, listen out for an upcoming inmate. Once you know where he is lay an explosive mine somewhere and remember where. Draw him out and make him follow you into your trap.
He'll run into it, catch on fire, and die. If he doesn't you may need to reload and punch him once before having him chase you.
In the graveyard, there will be two (2) minions fighting it out. One will die before you get to the bottom of the ladder (and take the ladder because you will die from the damage caused by the drop). Go over to the minion and get his attention. Drag him, in tow, until he is right on top of one of the boxes you open that will explode (any box that does not match your partner's name - Det. Sing). Remember, there are shotgun traps in the area, so follow the outside path (to the right) when trying to get the minion's attention. Select the box to open and watch it explode.
Downside: You will die. Save it before you execute this.
Upside: You will get these achievements
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Melissa, 3-8: There may have been chances before this, but in the graveyard you can find a lighter on the stairs just to the left of where you drop from the window. There are tons of Molotov bottles lying around, so grab and throw them at the survivor of the bum fight. Might take two to finish him off.
There are a couple different ways to do this. The more obvious way is to find a Molotov Cocktail, and while you have a lighter equipped, light the Molotov and throw it at a minion to burn him to death, or you can try to get a minion who has a Molotov equipped to set himself on fire. Two possible options for this are outside in the courtyard where the minion is on the roof throwing Molotovs, or in the room where a Molotov equipped minion is behind a door. He'll keep throwing them at you even though the door is in the way, and he should eventually set himself on fire.