Hello, does anyone know of any sites were you can play games like Medal of Honor online for free I've been searching and just can't find any

There are ways to illegaly download these games... But large games such as Medal of Honor are not played from your browser...

Try out the web site Play Games, Free Online Games at AddictingGames (http://www.addictinggames.com) you can play games on there for free
Although I'm not sure if they have the one your looking for but cheque it out