This level was one of the most difficult levels up to this point. If you don't move quickly at the start, all the hulks start going into free-roam mode; rather problematic, since there's 3 red hulks and tons of medium hulks and spiderbots to start with. In addition, the lava floor through most of the level makes avoiding splash damage a little more difficult. Particularly dangerous is the fork between the shaft with the spawn point, and the energy spawn, since two red hulks and a number of spider bots can come from the left, while medium hulks can shoot from the right. On the plus side, you can utilize the lava to take enemies out from around corners more easily. Cloaking device drops are also helpful, though the drops aren't a guaranteed find. Thankfully, the reactor room is easy enough. The only enemies are those bomb laying lava-camo drones. As long as you're careful, you should take no damage at that point.