1. I can't see my own shadow, but I can see others. It'd be nice to know where my shadow fall while going through certain entrances, as shadows give away soo much.
2. I can't hear bullets that hit the wall next to me!? Instead of being aware someone is shooting at me, I simply run into a ambush.
3. I can't pick up unused enemy explosives. A perk that would allow you to pick up unused explosives would be interesting?
Not major things, in any way, but things I've noticed effecting me in a small way!?