[agracier]

Sorry,but where can i find these "actors" ???

Well, normally they would be in your maps folder for the Channel map:

...MODS/mapmods/maps/CAN_EnglishChannel

BUT, if you are using HSFX or UP2.0 it is possible that they will encoded into an sfs file. This i am not knowledgeable about, so you will have to ask elsewhere.

I however, being an inveterate map-maker, always have my map in the above folders for purposes of altering them ...