In a situation where you and your squad are moving around to a flank for a better attack position but end up getting suppressed. The problem with that scenario is the fact you cannot locate the enemy shooters postion which leaves the squad totally defenseless, well i had a thought what if effects were added that showed the shooters postion by dust getting kicked up from the discharge of the weapon as he fired it. That would add a more realistic feel to the immersion and would do nicely with the foliage already in place. The effects wouldn't be placed for every rifle but rather ones that had a high recoil rate like the long range rifles and machine guns, if you wanted to go deeper into it I would say the dust kick up wouldn't be the same size for every rifle as not every gun has the same power. So as you and a couple men are being pinned down, you don't have to completely expose yourself to the enemy shooter but instead watch as the dust is kicked up...just a little idea I guess.