I'd take the eagles and the rifle and just start running. Pretty much negates the use of the rats, crocs, gorillas and bears and the rifle guy could pick off the others while the eagles harass them from the air. Make it a war of attrition and humans can outrun pretty much any animal on the planet.
Can I have a fiver on the wolves please?
And give me some action on the lions please.
Lions sleep for between 18-20 hours a day. They have absolutely 0 chance of outrunning humans.