Combat Ant (alternately spelt as Combatant) was an antweight robot that competed in the Antweight Championships of both series of Robot Wars Extreme. It won the championship in Extreme 1, but lost in the Extreme 2 antweight final to Anty B after becoming immobilised. Peter Waller also entered Millitant in the Extreme 2 Antweight Championship, and attempted to qualify for Series 4 with a heavyweight called Aeolus. However, Aeolus failed to qualify for the latter series.