How do you use the Chaff item on your units? I tried clicking on friendly units, pressing every key on the keyboard and nothing happens. I tried using it from range, tried using it while adjacent to the unit I want to use it on... and it doesn't work.

You’re apparently supposed to use them on enemies to lower the targeted unit’s accuracy for a few turns.

Hi, I bought this game quite recently and decided to try that chaff stuff.

I have equipped chaff to items and used it - but it gave me immediately my wanzers staying in vicinity as possible targets, I tried to use it on wanzer that is standing right next to the one with chaff, as well as on those staying a bit further, but it worked in both cases.

From what I see Wanzer is using short range weapon to distribute it, so I assume it may be the only requirement.

Maybe it was a bug in previous version of the game? Quite recently there was release a patch adding new game mode (i'm playing in this version of the game, of course bought on GOG), so maybe it was fixed in one of the patches?

Not sure if you will read this, but it's totally understandable, seeing how empty is this forum (or any other game related sub-forum on gog).