Alright, continuing this topic.
Crocodiles: Most of their units are amphibious. The heaviest vehicles and infantry aren't, requiring transports (for balance reasons), Many of the lower, more general purpose units, such as their basic tank, anti-infantry vehicle, transport, are amphibious.
Wolves: Swarming. They can set up quick, and their units are fairly beefy, but unless thy pull of a quick victory, their units are quickly outclassed by equivalent units. (Think the Zerg from starcaft)
Bears: Superior infantry. In a one to one fight, their infantry are better in a fight. While they would have some basic vehicles almost all factions have, (basic tank, anti-infantry vehicle, transport, etc.) they would have less high-grade vehicles, being replaced by superior infantry. in addition, what heavier vehicles they do have, are focused around clearing the way and transporting infantry.
Lions: General all around. The most vanilla faction, but is capable of holding it's own against the other factions. They don't have any advantages, but they don't have any weaknesses either. They can adapt to hit the weaknesses of any faction, assuming they don't overwhelm you with their advantage first.
Gorillas: I honestly have no idea.