: So we have combat worms now?

: ...Okay. and where exactly were these guys when Master Chief was pummeling
: the crap out of 1 prophet and Arbiter was stabbing another? you'd think
: the prophets would want their own guarding them instead of space apes and
: lizards.

: Answer lore man!

That's what I always thought too! I kinda like to imagine that the Prophet of Regret, seemingly the Covenant's supreme military commander during the Human-Covenant War, might have gotten his hands dirty once in a short while in his formative years.