I had no success in asking on game's forum (most of them are rather dead on GOG, sadly), so I've decided to ask here.

Is there any way to "restore" features visible only in add-on (multiplayer, single scenarios etc) to base game? I also own retail version of base game (where all this stuff is present), but it's in polish version, so probably it won't be compatible with add-on. Plus I prefer to play without disc.

Other question - I can't find anywhere cooler. It's supposed to be new equipment in add-on, but I was searching for it in skirmish mode in add-on (where I should have all possible gear), but there is no cooler. Weird, because new weapons are available even in base game campaign. Yet by some reason, I can't find anywhere cooler.