

The XM-345 Skull Drill is a weapon featured exclusively in Thing-Thing 4.
Overview[]
It can only be obtained from the weapon room in Genetics Lab 2. In addition, the weapon also comes with its own unique reticle. An unusual weapon from Systems Corp., the XM-345 Skull Drill is a gun to be feared by those on the business end. It fires a small missile with a drill on its end, that homes in on an unlucky victim's head, drilling through it and then detonating.
While it is quite a potent weapon, its power is limited by the fact that it only works if you aim directly at an enemy's head, the missile moves quick slowly, and it has a low rate of fire. If you attempt to shoot while not locked on to an enemy's head, the weapon doesn't fire. Additionally, it doesn't work against Hades, zombies, or Stinky Beans.
Trivia[]
- The numerals in the weapon's model number is an anagram of those in the XM-435 SuperMags's model number.
- So far, it is the only drill-based weapon featured in the series.
- This is the only weapon is the series to have its reticle change when held.
- This weapon is based on the Cerebral Bore from Turok 2: Seeds of Evil.