Olympic Games: London 2012

This will be one of the longer and more difficult trophies in the game. All in all, there are 16 unlockables in the game. 8 of them are National Kits and the other 8 are Golden Equipment (Golden Discus, Golden Shotgun etc). To earn these you will need to play through Olympic Mode on medium and hard difficulty. My advice would be to make sure you get gold in every event, especially on medium difficulty. On your hard playthrough you will need to get a minimum of 80 medal points (see below), so you can afford to get 2 or 3 bronze/silver medals during your 14 days.

Gold = 3 medal points
Silver = 2 medal points
Bronze = 1 medal point

Thanks to Svend-Rugaard for clearing this up properly.