One thing I have found very useful in PR is setting the AR as your point man. Now in real combat situations this is not often used. But in PR given the BOTs tendency to be extremely accurate, the ability for you AR to provide suppression fire is key to survival. Once the squad is in cover the squad leader can direct a tactical engagement if the AR has not eliminated the enemy. This is a tried and true practice used in large urban environments. A little less effective in open areas due to the BOTs ablilty to see threw foliage. But concepts remain the same.
There was a member of VG years ago that he would be a squad lead and I was his team lead. We would use the above mentioned tactics and as I said it was very successful. Unfortunately I do not remember that members name. He was extremely fun to play with because we would enforce tactical movements.