The Fauster is the secondary weapon of the Thermophile class of Conker: Live & Reloaded. It is only attainable through an upgrade.

The weapon fires an orange energy beam with pinpoint accuracy. It is highly effective against Mobile Units. Although it initially does no damage against infantry, if the beam is trained on them long enough, the target explodes. However, the high degree of marksmanship required for this to occur, coupled with the fact that the Thermophile slows down significantly when wielding the Fauster, means it's a fairly poor choice against infantry.