On multiplayer, as soon as you enter the game, press start (I think) where you get the menu to leave the game, leave the forum, etc. On there, you have the option to set a handicap. There are three levels, mild, moderate, and severe. The handicaps both limit the damage your weapon causes and decreases your armor, making it harder for you to kill, and easier for you to be killed. Mild has a 25% effect (i.e. your armor and weapons are 25% less effective), moderate has a 50% effect, and severe has a 75% effect. It certainly takes some adjustment to play, but if people are handicapped the right way, it can make for some good games with both noobs and experienced players.