When you lose/put down you primary and secondary weapon and keep your grenades or smoke grenades (or chem-lights), main weapon UI will fade away resulting in almost non-visible grenade bar.

This can make somehow hard to use grenades correctly without primary and secondary weapon.

Of course you dont find yourself very often in situation without any weapons and just bare grenades but when it happens (it happened to me in MP few times) grenades are you only self-defence option.

I believe this minor bug therefore hinders your ability to self defend without primary/secondary weapons and only grenades.

I included screens and croped details of UI and a short video of this issue.

Here is short video of issue: http://www.youtube.com/watch?v=Zvs-zfk_Fgc
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