I seem not to be very successful in Terminator games. Could not win "one" yet.
Any advise on the strategy?

IS IT OK TO TALK IN PRIVATE WITH MY PARTNER OR ONLY THROUGH THE GAME LOG?

I have to agree. With the rules set as it is now missing a turn can be used strategical to gain an advantage and that doesn't seem right. I understand the fact that there can be reasons for missing a turn but this should not result in an disadvantage for other players.