While enjoying some downtime at a Wild West-themed colony, the Space Marines are found by a local cattle rancher who tells them of a lucky escape from an Alien born from his livestock. The Bull Alien arrives and destroys the rancher's vehicle, and shrugs off all the firepower the Marines can throw at it but is killed when Corp. Hicks detonates the destroyed vehicle's fuel cell with his rocket launcher, incinerating the Alien. Realising the Bull Aliens are susceptible to fire, the Marines load up on flamethrowers and head out to destroy the rest.
