MAG

The Streaker medal is earned when you do a 15 kill streak in a match, without being downed. That means you have to get 15 kills in a row without dying. Getting it is quite simple if you know the tactics: using a turret (bunker or APC) is a good way to get kills easily, while being quite safe. Also, being a "parachutist-killing sniper" is a good method too.

When using Squad/Platoon Leader special attacks, you'll get plenty of kills without getting into the heat of the action. The trophy will pop once the medal is added to your collection (it doesn't pop just after getting the 15th consecutive kill).

For further information: see Medal guide (#23).