Alan Wake

This fight can appear really daunting but it's actually pretty simple. Wait for the enemies to close in on you, as well as the bulldozer and throw a flashbang grenade. This will get rid of the enemies and weaken the bulldozers shadow barrier. Now focus your flashlight on the thing and just boost away. Try to stay on the bulldozers side and just keep turning with it.

If you find yourself in a panic situation, like you get cornered, your flares can do a whole lot of damage but it's generally unecessary. Just pop batteries in that flashlight and burn its health away.

EDIT: I've included a youtube link for this one so that people can see what fight I'm talking about.

There is a cheeky way of doing this achievement, as said above you need to destroy the Dozer but if you can manage to kill all the Taken and keep dodging the Dozer, and get to the electric fence switch, activate it and get into the next area. The Dozer can't actually fit through the gap in the fence, so you can concentrate all your light on the vehicle now whilst it's trying to get to you. Don't forget to go back in the previous area to find all the available ammo/pick ups.

In episode three you will encounter a bulldozer on a pretty large area. You MUST destroy it to get the achievement.

Simply use your flashlight and/or other "light-tools" to destroy it. It takes a while but it's not that hard, even though i made it on the hard difficulty. There is three lockers in the area with items such as batteries.

Here's a video I made getting the achievement, with voice over to help you guys. This video was on the hard difficulty, and I explain exactly how to do the whole fight against the bulldozer.

You're all forgetting about literally the easiest way to do this. When you drop down from the stairs into this area you will be next to the outer wall of the building you were just in, and a sea-can perpendicular to the building. Run out into the middle of the lot to trigger the bulldozer attack, then once it comes, go back to that corner under the stairs. The bulldozer can't get you there. It will try, but just keep bouncing off the sea-can. This worked the first time I tried.
However, on my Nightmare play-through I tried the same thing (because it's fun to destroy a bulldozer with a flash-light) and that time it did manage to hit me by pushing a dumpster at me, which caused me to glitch through the wall and I was stuck on the inside. I had to reload the checkpoint that one time.

I got this by lureing the bulldozer into the middle of the area and throwing flares into the middle of the floor. By combining this with your torch usually makes this a short task.

Theres a good supply of flares in each of the 3 supply lockers within this area.