Um, they're only aggressive with each other:
That's probably the relevant points of the warthog for this game.Although capable of fighting (males aggressively fight each other during mating season) the warthog's primary defense is to flee by means of fast sprinting. The warthog's main predators are humans, lions, leopards, crocodiles, and hyenas. Cheetahs are also capable of catching warthogs of up to their own weight and raptors such as Verreaux's Eagle Owls and Martial Eagles sometimes prey on piglets.[14][15] However, if a female warthog has any piglets she will defend them very aggressively. Warthogs can inflict mortal wounds on predators, including formidable lions, with battles sometimes ending with the lions bleeding to death. Warthogs have been observed allowing banded mongooses to groom them to remove ticks.[16]
They're hunted by hyenas, they protect their own (except males protecting males, that doesn't happen), they often kill massive predators such as lions, and they allow banded mongooses to eat insects off of them.
I know what role that sounds like to me, but I'm hoping it might not be 100% obvious to a scum out there (probably is, but in the off chance it's not, I won't say anything about it).