Guys everytime i see someone roll in front of me enemy or friend (you can ask gurnisson he can back me up on this) it has never saved them, i simply turn a little bit and kill them or hit them as they are standing up, it doesn't work anymore seriously now, it doesn't work. you can't evade anything when you roll now. i've seen it with my eyes.
the amount of times i have said in teamspeak that the roll is a "big fucking help now" as i have just killed someone who successfully rolled in front of me feeing sorry for them is crazy, and i shame his team-mate who was the one who bumped him down.