Regardless of the mode being played, every now and then one will come across large weathered emus out and about. These are saddled and ready for action. They also have a worse health insurance plan than super animals do.
Getting up on an emu, any weapon that one has selected is stowed away.
While one is mounted upon an emu, any direct damage is taken by one’s emu. One is still susceptible to gas and blast damage.
If one should dismount from an emu, or be forcefully dismounted from a dead emu, one immediately equips the selected weapon and is able to use it accordingly.
This does mean that it can be very effective to rush an opponent, letting the emu tank the hits, and open fire the moment that one is dismounted.