Second-Bravo Squad
From Halopedia, the Halo wiki
Second-Bravo Squad was a Colonial Militia squad stationed in the area around Utgard and Gladsheim on Harvest. These men were one of the first groups of Humans to fight the Covenant on Harvest. Upon encountering the first Covenant species, they attempted to trade with the aliens, until the aliens attacked them[1].
2/B consisted of 12 CM recruits.