No, never travel with more than 5 or 6 people. The bigger the group, the more unorganized it will be, which you can't afford in these situations. In a big group, if one person makes a mistake, you're probably all dead.
I have taken a Zombie Survival Class, basic level. I hope to take the advanced level, or maybe I'll just buy the book. I actually carry small a zombie survival pamphlet in my wallet. It has info on the kind of equipement you want, the weapons you want, and how to defend your house.
For a weapon, I'd prefer to have a blunt weapon. Cutting weapons get stuck in the body, and guns are too loud, unless you have a silencer. A chainsaw is a horrible weapon. It runs on fuel, and it's loud as hell.
I'd want Flexor, Cazor, Avenger, and CadetLee. I know Flexor and Cazor could handle it, CadetLee has had Law Inforcement training, and Avenger looks pretty strong, and has the unique ability of remaining cool in any situation.
"I got kicked off the high school debate team for saying 'Yeah? Well, **** you!'
... I thought I had won."