In this level, there are natural bridges over a giant pit which if you fall, you will usually die. Use the following trick to get to the bottom without dying. This will be difficult if you have more than two bots. It is recommended that you try this alone first. Find the rocket launcher that is next to a bridge. Go on the bridge and face the flat wall that leads to the bottom. At a 45 degree angle, start blowing holes downwards until you have almost reached the bottom. You now have to jump and try to make it into the first hole you created. .You will lose some health here from the fall. Once you are there, go backwards out of the hole and slowly drop down to the next hole. Repeat this pattern until you get to the bottom. Save at least 1 rocket so you can kill yourself -- the bots will not be able to get to you. This is difficult to do when playing against bots because of them shooting at you. Set the timer to 30 minutes. Take a lot of weapons such as the Rail Driver and the Sniper Rifle with you. Start blowing up the natural bridges from the bottom. Do not do it completely, but just enough to watch all the bots plunge to their deaths.