lol, I just overlooked this one.
I am like Alice in wonderland every time I run this game. like I discovered that one can mount Micro T1 sight on top of the ACOG 6x sights.
btw regarding the primary weapons. you dont need to drop yours when you picked enemy. so you run with two or even three. thats why wondering why I just cant equip myself this way right from start if I have weight to spare.