Make sure you have 1 Nail Bomb and 1 Molotov. Throw the Nail Bomb at the Bloater, run a bit to the left to avoid his spore attack, then throw the Molotov right at him and that should finish him off. If not, 1 or 2 Hunting Rifle shot(s) should do the trick. You can use the same strategy for the Lakeside Resort Bloater Fight as well.
![](https://i.ytimg.com/vi/JsN6uizHMls/maxresdefault.jpg)