Thanks for the reactions.
I found the controls to replay the campaign missions without deleting anything.
The first time I played the game i was thrown into a unwinneble campaign mission, it felt like total chaos and if there were controls being displayed i din't see them.
I had to learn the keylayout from the setup menu's and had to watch fan made youtube movies to get some more information about how to use them, while most games give players a tutorial mission to learn basic controls and tactics.
After i got the basics down the only issu for me is the visibility of the enemies, even after i spot one its hard to separate friend from foe, even with collorblind mode on and TV contrast at maximum and brithnes at 60.
And altough i know my eyesight isnt a 100%, this is the first game i have had any trouble with it
I dont know if it was intended this way but i hope its going to be fixed one day
Maby a simple solution is to give the option to enlarge the cicles above an enemy once they are spotted for even those turn out so small that its hard to see if they are red or green