Changes

Start, get out the sniper rifle and immediately aim straight ahead at the guard standing by the door on 2nd floor of the large building.  Head shot the guard and immediately turn to the right staying against the wall and fence.  Keep a good line to the opening in the fence and when you reach the hole in the fence, immediately [[sidestrafe]] to the left.   

Start, get out the sniper rifle and immediately aim straight ahead at the guard standing by the door on 2nd floor of the large building.  Head shot the guard and immediately turn to the right staying against the wall and fence.  Keep a good line to the opening in the fence and when you reach the hole in the fence, immediately [[sidestrafe]] to the left.   

Aim up slightly and in the space between the first two buildings will be a guard.  He must be standing the the correct position, which is towards the right building and he'll be standing straight up.  If he is in any other position, you will be seen if you kill him, so that'll be a restart.  If he's in the correct position, head shot the guard.  This must absolutely be done without stopping or slowing down.

Aim up slightly and in the space between the first two buildings will be a guard.  He must be standing in the correct position, which is towards the right building and he'll be standing straight up.  If he is in any other position, you will be seen if you kill him, so that'll be a restart.  If he's in the correct position, head shot the guard.  This must absolutely be done without stopping or slowing down.

Now, between the next building and the large building there will be a female guard standing fairly far away.  Aim and head shot her.  This must also be done without stopping or slowing down.

Now, between the next building and the large building there will be a female guard standing fairly far away.  Aim and head shot her.  This must also be done without stopping or slowing down.