But you are forgetting that i can shoot your grenade in midair or in your hand, grenades can back fire.
for my favorite weapon look at my sig.
i dont know why my quote didnt work quite right.
If I were going to attack you while standing straight up in the middle of the battlefield, I wouldn't use a grenade. I'll be lobbing grenades from behind cover, so not only won't you be able to shoot them in my hand, you'll have even less opportunity to shoot them out of the air, since you have to take into account you reaction time.
THEN, you have to decide between shooting the grenade or keeping your eyes on me. You gonna let my nade knock you on your ass, or are you going to forget about me for the split-second I need to regain my footing in our fray? My grenade can only help me, and that's how I define "effective".