most likely same way as everyone else
Run past the 1st guy, and go through the left side killing the guy in front of you, use some random spray and quickly pick up a another gun, on the 1st bunch of guys. Flash bang in the next room and run to the left and lay down next to the side, crawl round and take them out, run up stairs and flash bang on the right side then go back and through the left side, spray a few guys at the front and sprint past the rest! then hope you get a perfect head shot on the terrorist(luckily i got it 1st time )
Run past the 1st guy, and go through the left side killing the guy in front of you, use some random spray and quickly pick up a another gun, on the 1st bunch of guys. Flash bang in the next room and run to the left and lay down next to the side, crawl round and take them out, run up stairs and flash bang on the right side then go back and through the left side, spray a few guys at the front and sprint past the rest! then hope you get a perfect head shot on the terrorist(luckily i got it 1st time )