Some of the best arsenals is a shotgun and dual-pistols.If you can find a chainsaw ,you can replace the dual-pistols. Molotovs are a great utility.You can light a big area with fire.Pick up a med-kit.Pills or adrenaline is find.

If your teammates are down make sure to revive them.It is much easier with 4 than 3.If you can't try to get a defib to revive them if they die.

Keep the infected as far away from you as possible.Don't go into a hoard with an axe. Use a Molotov to keep distance to the infected.

Have Fun!!!!!!!It just a game at the end of the day.