Brute Captain

From Gruntipedia

This article is too damned short, Marine! You will help Gruntipedia by making it larger so it will fit the screen, fool!

For those born without a sense of humour, Halopedia has an article on Brute Captain.

The Brute Chieftain is a giant, ugly douche who believes he so special because he has huge armor that still allows him to get killed instantly.