I admit that this was one of the hardest platinums for me to get, but the reason for this was not that I was using the wrong strategy, but that I was using the wrong weapon. I used to use the Electrotool on this level thinking that it was the most efficient.

I finally got platinum this way, and never wanted to play it again. I later found out though that the Laser Gun is actually the weapon of choice and can make this level much easier to play.

Anyway, for the strategy, try to spawn somewhere near a Laser Gun and aim to get the first kill within five seconds. There are several starting points where you are able to do this. One good point that I'll mention is when the chasisbot will spawn just to the left of your position. You should run quickly to the Electrotool to the right, pick it up, and turn back left for the quick kill. From here, you should see a Laser Gun on the ground, so get that and use it the rest of the way.

If you are not comfortable using the Laser Gun, you may have a little trouble using it at first. But trust me, learning how to use the Laser Gun is quite helpful for other levels as well. It usually takes two to three semi charged shots to kill the chassisbot. By semicharged, I mean charge for maybe a half a second for each shot.

If you happen to get the max damage icon, it will only take one of these shots, so try to get it sometime during your run if you can.

Also, a good place to be between kills is toward the center of the map near the homing rocket launcher. You will need some luck though for the platinum.

You really don't want the chassisbot to spawn inside the building, especially inside on the second floor. This can in most cases ruin a potential platinum run. Anyway, this level takes a good deal of persistence so keep at it.