Seeing every enemy highlighted is the massive advantage that having the radar unlocked gives a team. It even reveals players using Optical Camo, so the Radar Unlock in Future Soldier can prove to be a game winner.

There are 5 levels of Radar Unlock, each level increases the amount of time the radar is active, giving the team a greater chance of getting to and engaging the enemy.

Level 1     30 seconds
Level 2     45 seconds
Level 3     60 seconds
Level 4     75 seconds
Level 5     90 seconds