Challenging challenges

Are you finding it hard to complete some of the challenges on Call Of Duty 4? With the help of a friend, you can host a Cage match (1 on 1) and organise different scenarios to achieve maximum XP and ultimately increase your rank. One of the best (but most boring) examples is head shot kills - you and your friend take it in turns to shoot each other in the head by continuously meeting at a specified location.

Instructions:

Enter the pregame lobby

Send an invite to your friend but tell him/her not to accept - simply get ready to accept

Find a Cage match

As soon as you start matchmaking, tell your friend to accept the invitiation - he/she will then join the lobby and the match will begin