Ok, Finally worked out how to get them everytime next to the turret either side.

First. Get your two guys to take out the 2 enemies as soon as you enter the room.

Next Press L1 next to the left pillar and this is the important part. First look at the left door making sure you are dead on the option for them to enter the room. Failure to do so will make them say something like "Sorry sir, cant do that''

So this mean getting it dead on. With the left door first and dead on with the other. Next Ask logan to defuse the bomb and then grenade the door infront of you. Doing all of this correctly will make them spawn either side of the turret.

WARNING

This does crash. My option is to go up one rank and then save and quit. This avoids crashes and make you rank up quick Also they can die from time to time so watch out


Hope this helps. I assume this hasn't been posted on how to get them there
all the time

Thanks

Lucifer