The Dagger’s Tip Achievement in Transformers: Revenge of the Fallen

Complete each mission in the zone earning at least a bronze medal. This should come naturally as bronze is very easy to get for most missions. You can check your medal times in the War Room and the timer is in the corner of the screen. Just make sure you play all missions, as you can progress through the story without completing each and every one. You can move around the map and check to see which missions you have not completed in each zone.