I can't wait for the release cause I'm really in love with the Panzer Corps Demo but I can't buy/play a game where I have to fight against my own country, it would tear my heart apart

But now to my Questions:
1.) How long does a Multiplayer game last (e.g. Panzer Corps)? More then an hour? I would love to play the game vs my best man but if a match lasts longer then an hour we will never finish a battle ...
2.) Is there an option for 2on2? I guess not.
3.) Is there anything else then the Campaign and the normal Multiplayer Matchup planned? I would love to see a Survival Map where I have a Fortress with a few Units defending vs waves of Orks (or even better Necrons). You could also add a Online Highscore who survived the most Turns or sth.
4.) Will it be available on Steam?
For the Emperor
PS If you ever decide to develope an Operation Mercury Addon (or Standalone) for Panzer Corps and it is playable from the Cretan Side of Life I will love you forever! Untill then I wait for the W40KA Release