That would be like putting a loaded assault rifle in the hands of a monkey and trusting him to make rational decisions with it. (religion.blogs.cnn.com)
You will probably want to keep a sniper rifle with you at all times, since you can randomly be rewarded with a kill cam of your shots. (illgaming.net)
There is a sequence in the game where you have to fend off a wave of zombies with rifle. (cogconnected.com)