The recommended active skulls for this mission are Tough Luck, Fog, Famine, Tilt, Thunderstorm, and Mythic. Those wishing to maximize points should activate the Tough Luck skull, which is only a slight inconvenience; and Famine, which makes the third tower much more difficult, but is worth the modifier. You should always go through this level at least twice before considering to activate the Fog skull—the opening battle and indoor firefights could be irritating, since it is fairly easy for enemies to flank you. Thunderstorm is a good choice for skilled players—it may slow your progress with the number of promoted opponents, but the additional points are a more-than-reasonable compensation. Tilt is normally an irritation during head-on battles, but if you use Plasma Pistols or Needlers agai