Modern combat 3 fallen nation help

[shazain]

HOw to open this door?

 

[charm]

The doors all have blended in my memory but all of them open once you properly position your soldier. Sometimes you had to attach an explosive and other times you kicked it open but there is always an on screen icon that lights up once you finally get the correct distance and position.
I enjoyed the game although i have not done the online sessions since I could barely kill the predictable AI enemy