(http://www.andrew.cmu.edu/user/tpattiso/ITB/flashbang.gif)
Should soldat have flashbangs as a bonus crate, if you throw a flashbang, you have about 3 seconds to take cover or get blinded, the further you are from the flashbang, the less effect it has on you
(http://www.keele.ac.uk/socs/ks62/images/dd/FLASHBANG!!!!!!!!!.jpg)
OR, also smoke grenades.
(http://www.csnation.net/content/csinfo/images/weapons/sgren_a.jpg)
after throwing, you have 2 seconds before they *crack open* and slowly release puffs that will cover the soldier and make you almost invisible to the opponent because you will be covered by smoke.
(http://newsimg.bbc.co.uk/media/images/41485000/jpg/_41485454_smokeafp416.jpg)