SigmaTel71 wrote:-SSF-Sage wrote:Yes. You need to keep same folders and name of the files. But add it in a new pk3, never edit original ones. And ofc remember to name it alphabetically after.
Remember you need to copy some files from RTCW files. Iirc it is folder texts in SP_pak1.
 I did it already. 
Another quesion: is there a way to translate the CO-op main menu?
 Yes it is. Go to sp_pak_COOP1.pk3, open UI folder and copy the menu files and rename all the "text" " " commands. Do note there is own menu file for each stage the game loads, so there are many files and some trial and error involved. And again keep the original names. Here is an example from main.menu file:
itemDef {
          name copyright
          text "THE COOPERATIVE GAMEPLAY"  <---------------------put translation to here
        textfont UI_FONT_NORMAL
          style 0
          textscale .2
          rect 0 72 300 40
          textalign 1    
        textalign ITEM_ALIGN_CENTER
          textaligny 32
          textalignx 320
          forecolor .63 .47 .25 1
          visible 1 
          decoration 
    }
NOTE there is probably a way to keep english text as an option instead of replacing english texts I don't remember atm. For example the mod already comes with a selection to select Hungarian translations. Maybe Fretn has more to it, perhaps he even may want to take it into the mod. But anyway the workflow is same.